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| Content Provider | Springer Nature Link |
|---|---|
| Author | Cho, Soo Min Shim, Jae Han Park, Jin A Kim, Seong Kwan Cho, Sang Hyun Yi, Hee Jeong, Daun Abd El Aty, A. M. Kim, Jin Suk Zhang, Dan Shin, Ho Chul |
| Copyright Year | 2016 |
| Abstract | A versatile analytical method was developed for simple detection of minocycline residues in porcine muscle and milk using liquid chromatography-triple quadrupole tandem mass spectrometry (LC/MS/MS) with electrospray ionization. Samples were extracted with a mixture of acetonitrile and ethyl acetate (2:1, v/v), and then defatted using n-hexane. No cleanup procedure was deemed necessary. Minocycline was separated on a reversed-phase analytical column using a combination of 0.1 % formic acid in water (A) and 0.1 % formic acid in acetonitrile (B) as the mobile phase. Matrix-matched calibration showed good linearity over a concentration range of 10–60 μg/kg with a determination coefficient (R $^{ 2 }$) of 0.9727. Fortified porcine and milk samples having concentrations equivalent to and double the limit of quantification (LOQ = 10 ng/g), respectively, yielded recovery ranges between 83.02 and 8.03 % and relative standard deviations <18 %. Samples collected from a large market located in Seoul, Korea, tested negative for minocycline residue. These results show that a combination of acetonitrile and ethyl acetate can effectively extract minocycline from porcine muscle and milk without solid-phase extraction, a step usually required for cleanup before analysis. The developed method is simple, sensitive, and can be extrapolated to other food animal products that are rich in protein and fats. |
| Starting Page | 297 |
| Ending Page | 303 |
| Page Count | 7 |
| File Format | |
| ISSN | 24680834 |
| Journal | Journal of the Korean Society for Applied Biological Chemistry |
| Volume Number | 59 |
| Issue Number | 2 |
| e-ISSN | 24680842 |
| Language | English |
| Publisher | Springer Netherlands |
| Publisher Date | 2016-02-03 |
| Publisher Place | Dordrecht |
| Access Restriction | Subscribed |
| Subject Keyword | Tandem mass spectrometry Porcine muscle Liquid-phase extraction Minocycline Applied Microbiology Biological Techniques Bioorganic Chemistry Milk |
| Content Type | Text |
| Resource Type | Article |
| Subject | Organic Chemistry Biochemistry, Genetics and Molecular Biology |
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