Liquid chromatography-tandem mass spectrometry (LC-MS/MS) finds high fentanyl levels do not predict toxicity in tolerant users.
|Articles|December 6, 2011
- The Column-12-06-2011
- Volume 7
- Issue 22
Tips & Tricks: GPC/SEC Is This Real? Unexpected Peak Shapes
GPC/SEC samples often show broad and/or multimodal peaks that are not baseline separated and look strange to users of other chromatographic techniques. However, although many weird looking peaks are possible in macromolecular characterization, some peaks are stranger than others and it is worth checking if the observed signal truly describes the sample.
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GPC/SEC samples often show broad and/or multimodal peaks that are not baseline separated and look strange to users of other chromatographic techniques. However, although many weird looking peaks are possible in macromolecular characterization, some peaks are stranger than others and it is worth checking if the observed signal truly describes the sample. Therefore, it is good to know some tricks and hints that help identify measuring artefacts.
Articles in this issue
almost 15 years ago
Something fishyalmost 15 years ago
Market Profile: GC‒MSalmost 15 years ago
Improved HME detectionalmost 15 years ago
Instrumental Innovationsalmost 15 years ago
Rye bread benefitsalmost 15 years ago
CZE assists in drug detectionAdvertisement
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Gas chromatography-mass spectrometry (GC-MS) coupled with headspace solid-phase microextraction )HS-SPME) links cocoa variety to chocolate aroma and flavor profiles.
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