Abstract：
:For the first time, a rapid, sensitive and accurate liquid chromatography-atmospheric pressure chemical ionisation-tandem mass spectrometry (LC-APCI-MS/MS) method was developed for determination of validamycin A in agricultural food samples (rice, agaric, almond, cabbage, green onion, carrot, tomato, cucumber and spinach). The validamycin A residue was extracted with methanol-water (9/1, v/v) or methanol by vortex, and a HLB solid-phase extraction cartridge was used for cleaning up the extracts. LC-APCI-MS/MS data acquisition was carried out in multiple reaction monitoring (MRM) mode. A series of matrix-matched calibration solutions ranging from 2.5 to 50ngmL(-1) were used to record calibration curve. The limit of quantification (LOQ) was 10μgkg(-1). The average recoveries, measured at three concentrations levels (10.0, 50.0, 100.0μgkg(-1)) were in the range 83.5-109.6%. The proposed method offers the best sensitivity and specificity for the routine analysis of validamycin A in agricultural food samples.
journal_name
Food Chemjournal_title
Food chemistryauthors
Wang C,Zhang Z,Shen Y,Tian Z,Xu D,Han Cdoi
10.1016/j.foodchem.2014.07.145subject
Has Abstractpub_date
2015-02-15 00:00:00pages
150-5eissn
0308-8146issn
1873-7072pii
S0308-8146(14)01193-5journal_volume
169pub_type
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