巴西零售市场上牛奶中的链霉素和双氢链霉素残留

Streptomycin and dihydrostreptomycin residues in bovine milk from the Brazilian retail market.

作者信息

de Oliveira Renata C, Paschoal Jonas A R, Reyes Felix G R

机构信息

a Department of Food Science, School of Food Engineering , University of Campinas , P.O. Box 6121 , 13083-970 Campinas , SP , Brazil.

出版信息

Food Addit Contam Part B Surveill. 2010;3(3):156-62. doi: 10.1080/19393210.2010.507314.

DOI:10.1080/19393210.2010.507314

PMID:24779569

Abstract

Pasteurised bovine milk from retail markets in the State of São Paulo, Brazil, was analysed for the presence of streptomycin (STP) and dihydrostreptomycin (DHSTP) residues. An ELISA kit was used for screening and a LC-APCI-MS/MS QToF method for confirmatory analysis. Both methods were intra-laboratory validated and found suitable for screening and confirmatory testing, respectively, for STP and DHSTP residues in pasteurised bovine milk at concentration levels below the maximum residue limit (MRL) established for these substances (200 µg kg(-1) expressed as the sum of the concentrations of STP and DHSTP). No residues of STP and DHSTP at detectable levels were found in the analysed samples (n = 299).

摘要

对巴西圣保罗州零售市场上的巴氏杀菌牛乳进行了分析，以检测其中链霉素（STP）和双氢链霉素（DHSTP）残留情况。采用酶联免疫吸附测定试剂盒进行筛查，并采用液相色谱-大气压化学电离-串联质谱/四极杆飞行时间质谱法进行确证分析。两种方法均在实验室内部进行了验证，分别适用于巴氏杀菌牛乳中低于这些物质所规定的最大残留限量（MRL，以STP和DHSTP浓度之和表示为200 μg kg⁻¹）的STP和DHSTP残留的筛查和确证检测。在所分析的299份样品中未发现可检测水平的STP和DHSTP残留。