{"id":92745,"date":"2026-04-17T18:35:40","date_gmt":"2026-04-17T18:35:40","guid":{"rendered":"https:\/\/discover.restek.com\/?p=92745"},"modified":"2026-04-17T18:35:44","modified_gmt":"2026-04-17T18:35:44","slug":"unlock-ultra-low-analysis-of-pesticides-in-cannabis-by-gc-ms-ms","status":"publish","type":"post","link":"https:\/\/discover.restek.com\/de\/artikel\/fsfa5659\/unlock-ultra-low-analysis-of-pesticides-in-cannabis-by-gc-ms-ms","title":{"rendered":"Unlock Ultra-Low Analysis of Pesticides in Cannabis by GC-MS\/MS"},"content":{"rendered":"\n<ul class=\"wp-block-list\">\n<li>Maximize data quality\u2014TriMax and Topaz deactivations improve peak shapes and responses at trace levels.<\/li>\n\n\n\n<li>Achieve picogram-level sensitivity across a wide range of challenging GC-amenable pesticides.<\/li>\n\n\n\n<li>Reliably identify pesticides even in complex cannabis flower sample matrix.<\/li>\n<\/ul>\n\n\n\n<p>Pesticide analysis is a continuous challenge for cannabis testing labs due to the changing regulatory landscape and the complexity of analytes and matrices. Regulations continue to fluctuate state-to-state, monitoring different analytes at different levels. In addition, pesticide chemistries vary considerably, and labs face a prevalence of harsh matrices ranging from plant material to edibles to concentrates and more. Diluting samples can be an effective strategy for extending instrument uptime because less matrix is introduced, but it means the target analytes are also present at lower levels, making them more challenging to detect.<\/p>\n\n\n\n<p>For accurate, low-level analysis of pesticides in cannabis, a highly inert sample flow path is needed, so column quality becomes critical. If the column is not sufficiently inert, interactions between the analytes and imperfections (active sites) on the column surface can occur, which negatively affects peak shape and response. These problems are traditionally exacerbated at low levels, but they can be overcome by using an RMX-5Sil MS column. This column is an exceptionally inert, long-lasting, high-efficiency column that performs well for sensitive GC-MS\/MS analyses. It is powered by the novel TriMax deactivation, which provides a robust interface between the polymer and capillary tubing. This results in a highly inert surface that resists degradation from thermal and matrix-related stressors, keeping the instrument running at maximum performance longer.<\/p>\n\n\n\n<p>To demonstrate its performance, we subjected the RMX-5Sil MS column to low-level analysis of pesticides in cannabis flower\u2014a notoriously difficult matrix. We paired the column with a Topaz inlet liner for maximum inertness throughout the sample flow path. To assess analytical results independent of sample prep efficiency (since techniques vary greatly lab to lab), cannabis flower extract (see chromatogram) was spiked post-extraction at 1.7 ng\/mL with 30 pesticides covering a range of chemical functionalities. This level is comparable to 0.1 \u00b5g\/g pesticide in cannabis flower and ultimately presented as 0.17 pg on-column.<\/p>\n\n\n\n<p>Highly symmetrical peak shapes were obtained on the RMX-5Sil MS column, facilitating easy, accurate integration. Across all pesticides over triplicate injections, the average peak symmetry was 1.00 \u00b1 0.14, showing that even at extremely low levels in a difficult matrix, the sample flow path is inert, and pesticide peaks are in the preferred 0.8-1.2 symmetry window. Sensitive systems, such as GC-MS\/MS, require inert consumables to maintain maximum performance, and, as shown here, the RMX-5Sil MS column and Topaz liner are ideal for the analysis of pesticides in cannabis flower.<\/p>\n\n\n<div class=\"wp-block-custom-chromatogram-article-top\"><div class=\"chromatogram-article-placeholder\"><div class=\"figure-heading\"><strong>Figure 1: <\/strong>Achieve superior peak shapes for pesticides in cannabis at trace levels on-column with highly inert RMX-5Sil MS columns and Topaz liners.<\/div><div class='chromatogram-article-inner-full'><div class=\"chromatogram-article-inner\">\n<div class=\"wp-block-custom-chromatogram-article\"><div class=\"wp-block-custom-chromatogram-article\"><div class=\"chromatogram-image wide-image\"><img decoding=\"async\" src=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ff1399.png\" alt=\"Low-Level Pesticides in Cannabis Flower on RMX-5Sil MS by GC-MS\/MS\" title=\"-\"><\/div><p class=\"article-id\" style=\"text-align:center\"> GC_FF1399<\/p><div class=\"chromatogram-peaks\"><h4>Peaks<\/h4><table class=\"peaks col-lg-6 col-12 peak-50\">\n<thead><tr><th><\/th><th style=\"text-align: left;width: 75px\">Peaks<\/th><th style=\"text-align: center;width: 75px\">t<sub>R<\/sub> (min)<\/th><th style=\"text-align: center;width: 75px\">Quant SRM<\/th><th style=\"text-align: center;width: 75px\">Qual SRM<\/th><\/tr><\/thead>\n<tbody><tr><td class=\"num\">1.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Mevinphos\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7786-34-7\/Mevinphos\" target=\"_blank\" rel=\"noopener\">Mevinphos<\/a><\/td><td class=\"oth\">6.011<\/td><td class=\"oth\">127.0 \/ 109.1<\/td><td class=\"oth\">192.0 \/ 127.1<\/td><\/tr>\n<tr><td class=\"num\">2.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Etridiazole\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/2593-15-9\/Etridiazole\" target=\"_blank\" rel=\"noopener\">Etridiazole<\/a><\/td><td class=\"oth\">6.178<\/td><td class=\"oth\">211.0 \/ 183.0<\/td><td class=\"oth\">182.9 \/ 140.0<\/td><\/tr>\n<tr><td class=\"num\">3.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Pentachloronitrobenzene\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/82-68-8\/Pentachloronitrobenzene\" target=\"_blank\" rel=\"noopener\">Pentachloronitrobenzene<\/a><\/td><td class=\"oth\">7.478<\/td><td class=\"oth\">213.9 \/ 179.0<\/td><td class=\"oth\">236.9 \/ 143.0<\/td><\/tr>\n<tr><td class=\"num\">4.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Diazinone\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/333-41-5\/Diazinone\" target=\"_blank\" rel=\"noopener\">Diazinone<\/a><\/td><td class=\"oth\">7.498<\/td><td class=\"oth\">152.1 \/ 137.1<\/td><td class=\"oth\">137.0 \/ 84.1<\/td><\/tr>\n<tr><td class=\"num\">5.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Parathion methyl\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/298-00-0\/Parathion methyl\" target=\"_blank\" rel=\"noopener\">Parathion methyl<\/a><\/td><td class=\"oth\">7.922<\/td><td class=\"oth\">263.0 \/ 109.1<\/td><td class=\"oth\">109.0 \/ 79.0<\/td><\/tr>\n<tr><td class=\"num\">6.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Metalaxyl-m\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/57837-19-1\/Metalaxyl-m\" target=\"_blank\" rel=\"noopener\">Metalaxyl-m<\/a><\/td><td class=\"oth\">7.963<\/td><td class=\"oth\">132.1 \/ 117.1<\/td><td class=\"oth\">206.1 \/ 132.1<\/td><\/tr>\n<tr><td class=\"num\">7.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Malathione\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/121-75-5\/Malathione\" target=\"_blank\" rel=\"noopener\">Malathione<\/a><\/td><td class=\"oth\">8.118<\/td><td class=\"oth\">127.1 \/ 99.0<\/td><td class=\"oth\">173.1 \/ 117.1<\/td><\/tr>\n<tr><td class=\"num\">8.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Chlorpyrifos\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/2921-88-2\/Chlorpyrifos\" target=\"_blank\" rel=\"noopener\">Chlorpyrifos<\/a><\/td><td class=\"oth\">8.194<\/td><td class=\"oth\">197.0 \/ 169.0<\/td><td class=\"oth\">314.0 \/ 257.9<\/td><\/tr>\n<tr><td class=\"num\">9.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Allethrin\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/584-79-2\/Allethrin\" target=\"_blank\" rel=\"noopener\">Allethrin<\/a><\/td><td class=\"oth\">8.219<\/td><td class=\"oth\">123.1 \/ 122.1<\/td><td class=\"oth\">79.1 \/ 77.1<\/td><\/tr>\n<tr><td class=\"num\">10.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Fenthion\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/55-38-9\/Fenthion\" target=\"_blank\" rel=\"noopener\">Fenthion<\/a><\/td><td class=\"oth\">8.224<\/td><td class=\"oth\">278.0 \/ 109.0<\/td><td class=\"oth\">278.0 \/ 245.1<\/td><\/tr>\n<tr><td class=\"num\">11.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Fipronil\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/120068-37-3\/Fipronil\" target=\"_blank\" rel=\"noopener\">Fipronil<\/a><\/td><td class=\"oth\">8.409<\/td><td class=\"oth\">213.0 \/ 143.0<\/td><td class=\"oth\">&#8211; \/ 212.9<\/td><\/tr>\n<tr><td class=\"num\">12.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Cyprodinil\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/121552-61-2\/Cyprodinil\" target=\"_blank\" rel=\"noopener\">Cyprodinil<\/a><\/td><td class=\"oth\">8.434<\/td><td class=\"oth\">224.1 \/ 222.2<\/td><td class=\"oth\">210.1 \/ 208.1<\/td><\/tr>\n<tr><td class=\"num\">13.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Tetrachlorvinphos\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/22248-79-9\/Tetrachlorvinphos\" target=\"_blank\" rel=\"noopener\">Tetrachlorvinphos<\/a><\/td><td class=\"oth\">8.68<\/td><td class=\"oth\">328.9 \/ 109.1<\/td><td class=\"oth\">109.0 \/ 79.0<\/td><\/tr>\n<tr><td class=\"num\">14.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Paclobutrazol\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/76738-62-0\/Paclobutrazol\" target=\"_blank\" rel=\"noopener\">Paclobutrazol<\/a><\/td><td class=\"oth\">8.72<\/td><td class=\"oth\">236.1 \/ 125.1<\/td><td class=\"oth\">125.0 \/ 89.1<\/td><\/tr>\n<tr><td class=\"num\">15.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Fludioxonil\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/131341-86-1\/Fludioxonil\" target=\"_blank\" rel=\"noopener\">Fludioxonil<\/a><\/td><td class=\"oth\">8.816<\/td><td class=\"oth\">248.0 \/ 127.1<\/td><td class=\"oth\">127.1 \/ 100.1<\/td><\/tr>\n<\/tbody><\/table>\n<table class=\"peaks col-lg-6 col-12 peak-50\"><thead><tr><th><\/th><th style=\"text-align: left;width: 75px\">Peaks<\/th><th style=\"text-align: center;width: 75px\">t<sub>R<\/sub> (min)<\/th><th style=\"text-align: center;width: 75px\">Quant SRM<\/th><th style=\"text-align: center;width: 75px\">Qual SRM<\/th><\/tr><\/thead><tbody>\n<tr><td class=\"num\">16.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Endosulfan I\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/959-98-8\/Endosulfan I\" target=\"_blank\" rel=\"noopener\">Endosulfan I<\/a><\/td><td class=\"oth\">8.84<\/td><td class=\"oth\">240.9 \/ 121.1<\/td><td class=\"oth\">240.9 \/ 199.1<\/td><\/tr>\n<tr><td class=\"num\">17.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Myclobutanil\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/88671-89-0\/Myclobutanil\" target=\"_blank\" rel=\"noopener\">Myclobutanil<\/a><\/td><td class=\"oth\">8.936<\/td><td class=\"oth\">179.1 \/ 125.1<\/td><td class=\"oth\">152.0 \/ 125.0<\/td><\/tr>\n<tr><td class=\"num\">18.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Iprodione\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/36734-19-7\/Iprodione\" target=\"_blank\" rel=\"noopener\">Iprodione<\/a><\/td><td class=\"oth\">9.207<\/td><td class=\"oth\">244.0 \/ 160.0<\/td><td class=\"oth\">244.0 \/ 187.0<\/td><\/tr>\n<tr><td class=\"num\">19.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Endosulfan II\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/33213-65-9\/Endosulfan II\" target=\"_blank\" rel=\"noopener\">Endosulfan II<\/a><\/td><td class=\"oth\">9.302<\/td><td class=\"oth\">195.0 \/ 159.0<\/td><td class=\"oth\">207.0 \/ 172.0<\/td><\/tr>\n<tr><td class=\"num\">20.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Piperonyl butoxide\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/51-03-6\/Piperonyl butoxide\" target=\"_blank\" rel=\"noopener\">Piperonyl butoxide<\/a><\/td><td class=\"oth\">9.729<\/td><td class=\"oth\">176.1 \/ 91.1<\/td><td class=\"oth\">176.1 \/ 146.1<\/td><\/tr>\n<tr><td class=\"num\">21.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Tebuconazole\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/107534-96-3\/Tebuconazole\" target=\"_blank\" rel=\"noopener\">Tebuconazole<\/a><\/td><td class=\"oth\">9.739<\/td><td class=\"oth\">250.1 \/ 125.1<\/td><td class=\"oth\">250.1 \/ 153.1<\/td><\/tr>\n<tr><td class=\"num\">22.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Tetramethrin\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/7696-12-0\/Tetramethrin\" target=\"_blank\" rel=\"noopener\">Tetramethrin<\/a><\/td><td class=\"oth\">9.941<\/td><td class=\"oth\">164.1 \/ 107.1<\/td><td class=\"oth\">123.1 \/ 81.1<\/td><\/tr>\n<tr><td class=\"num\">23.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Bifenthrin\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/82657-04-3\/Bifenthrin\" target=\"_blank\" rel=\"noopener\">Bifenthrin<\/a><\/td><td class=\"oth\">9.991<\/td><td class=\"oth\">181.1 \/ 165.1<\/td><td class=\"oth\">166.1 \/ 165.1<\/td><\/tr>\n<tr><td class=\"num\">24.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Phosmet\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/732-11-6\/Phosmet\" target=\"_blank\" rel=\"noopener\">Phosmet<\/a><\/td><td class=\"oth\">10.072<\/td><td class=\"oth\">160.0 \/ 77.1<\/td><td class=\"oth\">133.0 \/ 77.1<\/td><\/tr>\n<tr><td class=\"num\">25.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Pyridaben\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/96489-71-3\/Pyridaben\" target=\"_blank\" rel=\"noopener\">Pyridaben<\/a><\/td><td class=\"oth\">11.26<\/td><td class=\"oth\">147.1 \/ 117.1<\/td><td class=\"oth\">117.1 \/ 115.1<\/td><\/tr>\n<tr><td class=\"num\">26.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Coumaphos\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/56-72-4\/Coumaphos\" target=\"_blank\" rel=\"noopener\">Coumaphos<\/a><\/td><td class=\"oth\">11.369<\/td><td class=\"oth\">226.0 \/ 163.1<\/td><td class=\"oth\">109.0 \/ 81.0<\/td><\/tr>\n<tr><td class=\"num\">27.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Cyfluthrin\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/68359-37-5\/Cyfluthrin\" target=\"_blank\" rel=\"noopener\">Cyfluthrin<\/a><\/td><td class=\"oth\">11.651<\/td><td class=\"oth\">206.1 \/ 151.1<\/td><td class=\"oth\">163.0 \/ 91.1<\/td><\/tr>\n<tr><td class=\"num\">28.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Cypermethrin\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/52315-07-8\/Cypermethrin\" target=\"_blank\" rel=\"noopener\">Cypermethrin<\/a><\/td><td class=\"oth\">11.954<\/td><td class=\"oth\">181.1 \/ 152.1<\/td><td class=\"oth\">163.0 \/ 91.1<\/td><\/tr>\n<tr><td class=\"num\">29.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Fenvalerate\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/51630-58-1\/Fenvalerate\" target=\"_blank\" rel=\"noopener\">Fenvalerate<\/a><\/td><td class=\"oth\">12.865<\/td><td class=\"oth\">125.0 \/ 89.1<\/td><td class=\"oth\">167.1 \/ 125.1<\/td><\/tr>\n<tr><td class=\"num\">30.<\/td><td class=\"cmpd\"><a class=\"cmpd_link\" title=\"View compound information for Deltamethrin\" href=\"https:\/\/ez.restek.com\/compound\/view\/en\/52918-63-5\/Deltamethrin\" target=\"_blank\" rel=\"noopener\">Deltamethrin<\/a><\/td><td class=\"oth\">13.681<\/td><td class=\"oth\">181.1 \/ 152.1<\/td><td class=\"oth\">252.9 \/ 174.0<\/td><\/tr>\n<\/tbody><\/table><\/div><div class=\"chromatogram-conditions\"><h4>Conditions<\/h4><div class=\"conditions-container container-fluid\"><div class=\"row\"><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Column<\/th><td>RMX-5Sil MS, 30 m, 0.25 mm ID, 0.25 \u00b5m (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/17323?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_FF1399\" rel=\"noopener\">cat.# 17323<\/a>)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Standard\/Sample<\/th><td>Canadian pesticide standards kit (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/32592?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_FF1399\" rel=\"noopener\">cat.# 32592<\/a>)<\/td><\/tr><tr><td><\/td><\/td><\/tr>\n<tr><th class=\"sub conditions_header\" scope=\"row\">Diluent:<\/th><td>1:1 hexane:acetone (1% acetic acid)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Conc.:<\/th><td>1.7 ng\/mL (0.17 pg on-column)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Injection<\/th><td><\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Vol.:<\/th><td>1 \u00b5L split (split ratio 10:1)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Liner:<\/th><td>Topaz 5.0 mm ID Precision inlet liner w\/wool (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/23327?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_FF1399\" rel=\"noopener\">cat.# 23327<\/a>)<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Inj. Temp.:<\/th><td>280 \u00b0C<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\" colspan=\"2\">Oven<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Oven Temp.:<\/th><td>50 &#176;C (hold 1 min) to 270 &#176;C at 30 &#176;C\/min to 300 &#176;C at 5 &#176;C\/min (hold 0.5 min)<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Carrier Gas<\/th><td>He, constant flow<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Flow Rate:<\/th><td>1.4 mL\/min @ 50 \u00b0C<\/td><\/tr><\/table><table class=\"conditions col-lg-6 col-12\"><tr><th class=\"conditions_header\" scope=\"row\">Detector<\/th><td>TSQ 9000 MS\/MS<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Transfer Line Temp.:<\/th><td>300 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Aperture Size:<\/th><td>6 mm ID<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Source Temp.:<\/th><td>300 \u00b0C<\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Tune Type:<\/th><td>PFTBA <\/td><\/tr><tr><th class=\"sub conditions_header\" scope=\"row\">Ionization Mode:<\/th><td>EI <\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Instrument<\/th><td>Thermo Trace  GC<\/td><\/tr><tr class=\"cgram_header_row\"><th class=\"conditions_header\" scope=\"row\">Sample Preparation<\/th><td>Cannabis flower extract was spiked at 1.7 ng\/mL with select pesticides featured in the Canadian pesticides standards kit (<a target=\"_blank\" href=\"https:\/\/www.restek.com\/p\/32592?utm_source=chromatograms&amp;utm_medium=link&amp;utm_campaign=GC_FF1399\" rel=\"noopener\">cat.# 32592<\/a>). Extracts represent a 1:5 ratio of cannabis flower in acetonitrile (1% acetic acid) further diluted in hexane and acetone. Concentration reflects approximately 0.1 \u00b5g\/g pesticide in flower. <\/td><\/tr><\/table><\/div><\/div><\/div><div class=\"chromatogram-pdf-link\"><a href=\"https:\/\/ez.restek.com\/images\/cgram\/gc_ff1399.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"18\" height=\"18\" viewBox=\"0 0 18 18\"><g data-name=\"Group 2996\"><path data-name=\"Rectangle 1246\" d=\"M0 0h18v18H0z\" style=\"fill: none;\"><\/path><\/g><g data-name=\"Group 2997\"><path data-name=\"Path 729\" d=\"M13.412 11.4v2.017H5.345V11.4H4v2.017a1.349 1.349 0 0 0 1.345 1.345h8.068a1.349 1.349 0 0 0 1.345-1.345V11.4zm-.672-2.694-.948-.948-1.741 1.735V4H8.706v5.493L6.965 7.758l-.948.948 3.361 3.361z\" transform=\"translate(-.437 -.414)\" style=\"fill: rgb(13, 123, 196);\"><\/path><\/g><\/svg>Download PDF<\/a><\/div><\/div><\/div>\n<\/div><\/div><\/div>\n\n        <div class=\"cpb\">\n            <h3 class=\"cpb-heading\">Products Mentioned<\/h3>\n            <hr class=\"cpb-heading-underline\" \/>\n            <div class=\"cpb-list\">\n                                    <div class=\"cpb-item\">\n                        <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/de.restek.com\/p\/17323\">                                Catalog No. 17323                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">RMX-5Sil MS GC Kapillars\u00e4ule, 30 m, 0.25 mm ID, 0.25 \u00b5m<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/de.restek.com\/p\/17323\">Produkt anzeigen<\/a>\n                                                    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                       <div class=\"cpb-col cpb-col--left\">\n                            <a class=\"cpb-catalog\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/de.restek.com\/p\/22656\">                                Catalog No. 22656                            <\/a>                        <\/div>\n                        <div class=\"cpb-col cpb-col--middle\">\n                            <div class=\"cpb-title\">Restek ProFLOW 6000 Elektronischer Flussmesser<\/div>\n                        <\/div>\n                        <div class=\"cpb-col cpb-col--right\">\n                                                            <a class=\"cpb-view-btn\" target=\"_blank\" rel=\"noopener noreferrer\" href=\"https:\/\/de.restek.com\/p\/22656\">Produkt anzeigen<\/a>\n                                                    <\/div>\n                    <\/div>\n                            <\/div>\n        <\/div>\n        \n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Experience how highly inert RMX-5Sil MS GC columns empower mass spectrometers to maximize performance for low level analysis of pesticides in cannabis, delivering sharp peaks for accurate 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