{"id":2841,"date":"2019-12-26T21:38:13","date_gmt":"2019-12-27T05:38:13","guid":{"rendered":""},"modified":"2025-08-08T14:48:21","modified_gmt":"2025-08-08T21:48:21","slug":"2841","status":"publish","type":"post","link":"https:\/\/www.vernier.com\/til\/2841","title":{"rendered":"Mini GC Plus Gas Chromatograph Troubleshooting and FAQs"},"content":{"rendered":"<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\"><a href=\"\/product\/vernier-mini-gc-plus\/\">Vernier Mini GC Plus<\/a> (<nobr>GC2-MINI<\/nobr>)<\/h3>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<p><a href=\"https:\/\/www.vernier.com\/files\/manuals\/gc2-mini.pdf\">Specifications and User Guide<\/a><\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/www.vernier.com\/wp-content\/uploads\/2019\/11\/product.gc2-mini._hero.001-scaled.jpg\"\/><\/figure>\n<\/div>\n<\/div>\n<ul class=\"wp-block-list has-very-light-gray-background-color has-background\">\n<li>If you have the Go Direct Mini GC, see <a href=\"\/til\/7281\/\">Go Direct Mini GC Troubleshooting and FAQs<\/a><\/li>\n<li>If you have the original Mini GC, see <a href=\"\/til\/2180\/\">Mini Gas Chromatograph Troubleshooting and FAQs<\/a><\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Troubleshooting<\/h3>\n<ul class=\"wp-block-list\">\n<li><strong>Inconsistent Flow<\/strong><br \/>\u26ac Likely Cause: Worn or damaged septum.<br \/>\u26ac Solution: Replace the septum.<\/li>\n<li><strong>Inconsistent Peak Areas<\/strong><br \/>\u26ac Likely Cause: Irregular injection volume or worn septum.<br \/>\u26ac Solution: Check your injection technique and replace the septum.<\/li>\n<li><strong>No Communication<\/strong><br \/>\u26ac Likely Cause: Software mismatch or cable\/Bluetooth connection.<br \/>\u26ac Solution: Verify software versions and check USB cables.<\/li>\n<li><strong>No Power<\/strong><br \/>\u26ac Likely Cause: Power cord or switch issue.<br \/>\u26ac Solution: Confirm that power plugs are fully inserted and the switch is turned on.<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">General Use Tips<\/h3>\n<ul class=\"wp-block-list\">\n<li><strong>Use Approved Compounds Only<\/strong>: Always refer to the list of acceptable compounds in <a href=\"https:\/\/www.vernier.com\/files\/manuals\/gc2-mini.pdf\">the user guide<\/a> before injecting new samples.<\/li>\n<li><strong>Avoid High-Water Samples<\/strong>: You CANNOT inject samples that contain more than 5% water. This will ruin the detector.<\/li>\n<li><strong>Hamilton Syringe Note<\/strong>: The syringe shipped with the device has a brown bumper on the needle. <strong>Do not remove this bumper<\/strong>\u2014it protects the injection port.<\/li>\n<\/ul>\n<p class=\"has-text-align-center has-very-light-gray-background-color has-background\">Also see <a href=\"\/til\/2953\/\">Best Practice Techniques for Vernier gas chromatographs<\/a><\/p>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<div style=\"height:50px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Additional Troubleshooting<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/til\/2953\/\">Best Practice Techniques for Vernier gas chromatographs<\/a><\/li>\n<li><a href=\"\/til\/2900\/\">Can I inject water into Vernier gas chromatographs?<\/a><\/li>\n<li><a href=\"\/til\/2104\/\">Can I inject a gas into the Vernier gas chromatographs?<\/a><\/li>\n<li><a href=\"\/til\/2050\/\">What size needle do Vernier gas chromatographs require?<\/a><\/li>\n<li><a href=\"\/til\/2296\/\">Where can I order the syringe for Vernier gas chromatographs?<\/a><\/li>\n<li><a href=\"\/til\/2548\/\">The peak heights on my Vernier gas chromatograph are lower than they were previously.<\/a><\/li>\n<li><a href=\"\/til\/2547\/\">My Vernier gas chromatograph pressure won't get above 15 kPa.<\/a><\/li>\n<li><a href=\"\/til\/3154\/\">I need to ship a Vernier gas chromatograph to Vernier for repair. How should I package it?<\/a><\/li>\n<li><a href=\"\/til\/3916\/\">Can I purchase a replacement power supply for my Vernier gas chromatograph?<\/a><\/li>\n<li><a href=\"\/til\/2147\/\">Where can I buy the substances used in the Mini GC lab manual?<\/a><\/li>\n<li><a href=\"\/til\/2907\/\">My Mini GC or Mini GC Plus suddenly drops its connection. <\/a><\/li>\n<li><a href=\"\/til\/2942\/\">What are some sample temperature\/pressure profiles for the new compounds that can be investigated with the Mini GC Plus?<\/a><\/li>\n<li><a href=\"\/til\/3006\/\">How long will the Mini GC\/Mini GC Plus column last?<\/a><\/li>\n<li><a href=\"\/til\/3082\/\">Why does my Go!Link or GC Mini fail to connect every other time on Windows 8.1?<\/a><\/li>\n<li><a href=\"\/til\/3350\/\">What is the film thickness of the column in your Mini GC Plus?<\/a><\/li>\n<li><a href=\"\/til\/3459\/\">Where can I purchase the substances used in the Mini GC Plus lab book?<\/a><\/li>\n<li><a href=\"\/til\/3672\/\">Does your Mini GC Plus have the ability to separate a mixture of methanol and ethanol?<\/a><\/li>\n<li><a href=\"\/til\/7313\/\">How is the Go Direct Mini GC different than previous versions of the Mini GC?<\/a><\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<h3 class=\"wp-block-heading\">Specifications<\/h3>\n<ul class=\"wp-block-list\">\n<li>Column: High-quality Restek MXT-1 Stainless capillary column<br \/>\u26ac Length: 11 m<br \/>\u26ac Inner diameter: 0.53 mm<\/li>\n<li>Column operating temperature: 30\u00b0C to 160\u00b0C<br \/>\u26ac maximum heating ramp: 10\u00b0C\/min<\/li>\n<li>Detector: Seacoast Science MEMS Chemi-Capacitive Detector<\/li>\n<li>Carrier gas: Ambient air<\/li>\n<li>Operating pressure: 1 to 21 kPa (above ambient pressure)<\/li>\n<li>Environmental conditions<br \/>\u26ac Temperature: 5\u00b0C to 40\u00b0C <br \/>\u26ac Humidity: 95% or less (non-condensing environment)<\/li>\n<li>Liquid injection volume: 0.01 to 0.6 \u00b5L<\/li>\n<li>Dimensions: 108 mm height, 191 mm length, 133 mm width<br \/>\u26ac Weight: 1.3 kg<\/li>\n<li>Power Requirements: 24 VDC, 2.5 A from an external power supply<\/li>\n<li>Utility: External power supply rated for 100\u2013240 VAC, 1.5 A 50\u201360 Hz<\/li>\n<\/ul>\n<div style=\"height:20px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Related Products<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/product\/mini-usb-to-usb-c-cable\/\">Mini USB-C Cable<\/a> (<nobr>CB-USB-C-MINI<\/nobr>)<\/li>\n<\/ul>\n<\/div>\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Replacement Parts<\/h3>\n<ul class=\"wp-block-list\">\n<li><a href=\"\/product\/gc-septa-package-of-4\/\">GC Septa (package of 4)<\/a> (<nobr>GC-SEP<\/nobr>)<\/li>\n<li><a href=\"\/product\/gc-1%ce%bcl-hamilton-syringe\/\">Mini GC 1 \u03bcL Hamilton Syringe<\/a> (<nobr>GC-SYR-MIC<\/nobr>)<\/li>\n<li><a href=\"\/product\/mini-usb-cable\/\">Mini USB Cable<\/a> (<nobr>CB-USB-MINI<\/nobr>)<\/li>\n<li><a href=\"\/product\/replacement-power-supply-for-vernier-mini-gas-chromatographs\/\">Replacement Power Supply for Vernier Mini Gas Chromatographs<\/a> (<nobr>GC2-MINI-PS<\/nobr>)<\/li>\n<\/ul>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Specifications and User Guide Troubleshooting General Use Tips Also see Additional Troubleshooting Specifications Related Products Replacement Parts<\/p>\n","protected":false},"author":1073,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[4755,4753,3574,720,4754,3573],"class_list":["post-2841","post","type-post","status-publish","format-standard","hentry","tag-gcmain","tag-gcmini-plus-gc2-mini-mini-gc-plus","tag-gcminimain","tag-maintil","tag-minigc-plus","tag-minigcmain"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/2841","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/users\/1073"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/comments?post=2841"}],"version-history":[{"count":0,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/posts\/2841\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/media?parent=2841"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/categories?post=2841"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vernier.com\/til\/wp-json\/wp\/v2\/tags?post=2841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}