Author: chemguy81

What’s in my Gummies? Part 2

Continuing on from last week with the gummy bear sample preparations, I decided to take a look at the different things in that gummy bear.  The gummy bear in question is a multivitamin that contains a multitude of different vitamins, so I decided to first focus on Vitamin C or Ascorbic Acid.   Preparing the sample…
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What’s in my gummies? Part 1

With gummy candies becoming more common as a matrix for things like cannabinoids and multivitamins, it’s important to have a simple, fast, and repeatable sample preparation in order to obtain reliable values for analytes of interest in these gummies. I started with a multivitamin fiber gummy, and I thought to myself, how do I get…
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Lucidity GC-FID Does Cocaine, Again!

Last week I set out to test the myth that there was cocaine on US currency, specifically dollar bills.  After testing several dollar bills, I came up empty handed on any of the bills testing positive for cocaine, other than the bill that I purposely spiked with cocaine.  Speaking with colleagues, I learned that I…
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Lucidity GC-FID Does Cocaine

I decided to put a long standing rumor to rest that I heard when I was in middle school, and everyone I know believes.  That rumor is that all US dollars have trace amounts of cocaine on them. To test this I went around and collected dollar bills from various stores in the area. These…
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Lucidity LC-UV and RI Together

  Like most people, when the new year comes around I always make a resolution to eat healthy and lose some weight. This year I decided to cut back on the amount of sugar I eat on a daily basis. Sugar is a major additive in foods and beverages. The American Heart Association recommends that…
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Rapid Sample Preparation and Analysis of Acetaminophen by HPLC-UV in Tablets

Awhile back, I was involved in a multi car accident, where I was sandwiched in the middle. My car and I both took a beating. This accident left me with major wrist pain to the point that I couldn’t shake a separatory funnel without extreme pain and weakness. For this pain I was prescribed Acetaminophen,…
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Nicotine Sample Method

Nicotine in vaping e-liquid sample in methanol System Parameters Lucidity GC-FID Conditions Carrier Hydrogen Control Pressure Flow 2.0 mL/min Split ratio 10:1 Column MXT-5 30 m x 0.25 mm, 0.25 um Injector 250 ℃ FID 250 ℃ Oven Program Rate Temperature Hold Time   35 ℃ 0 min 11 ℃/min 250 ℃ 4.0 min For…
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