-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
- Cosmetic Ingredient
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
(6) Gas chromatography-mass spectrometry (GC-MS)
At present, there are few reports on the method of separating and detecting non-steroidal anabolic hormones using GC alone.
The combination of GC and MS detector has a wide range of applications and higher sensitivity, and can provide analyte structure information, which is non-steroidal assimilation.
One of the confirmation methods in hormone residue monitoring
.
However, GC-MS also requires derivatization during detection, and the processing steps are more complicated
Ding Yayun et al.
used GC-MS to detect DES residues in animal livers
.
After the extract is blown dry with nitrogen, add 100μL of acetonitrile-N-methyl-N-trimethylsilane trifluoroacetamide (MSTFA)-trimethylchlorosilane (TMCS) (120+80+1, v/v) , Shake, seal, derivatize in 60℃ water bath for 15min, and analyze by GC-MS after cooling
Zhang et al.
established a GC-MS method to detect ZER, TAL, ZAN and a-ZOL residues in cattle muscle
.
After the beef is homogenized, it is extracted with methanol , frozen and degreasing, the extract is passed through an IAC column, eluted with methanol, dried with N2, derivatized with BSTFA, and finally detected by GC-MS
Related Links: Determination Method of Non-steroidal Anabolic Hormone Drug Residues (2)
