干旱区生态环境知识资源中心(Arid): 通过型固相萃取-液相色谱-串联质谱法同时快速测定鱼肉中7种微囊藻毒素

Arid

	通过型固相萃取-液相色谱-串联质谱法同时快速测定鱼肉中7种微囊藻毒素
其他题名	Rapid and simultaneous determination of seven microcystins in fish meat by liquid chromatography-tandem mass spectrometry coupled with pass-through solid phase extraction
	李诗言 1; 王扬 1; 王鼎南 1; 吴洪喜 1; 丁雪燕 1; 崔益玮 2; 沈清 2
来源期刊	色谱
ISSN	1000-8713
出版年	2017
卷号	35 期号:8 页码:794-800
中文摘要	采用通过型固相萃取净化去除样品基质中脂类物质的干扰,建立了鱼肉中7种微囊藻毒素的液相色谱-串联质谱快速分析方法。样品经80 ℃水浴热处理后用体积分数为90%的甲醇水溶液进行提取,使用Oasis PRiME HLB通过型固相萃取柱净化。净化后的样品采用Waters XSelect HSS T3色谱柱分离,以0.1%(体积分数)甲酸乙腈溶液和0.1%(体积分数)甲酸水溶液为流动相,梯度洗脱,多反应监测正离子模式扫描,采用基质匹配溶液外标法定量。研究了7种微囊藻毒素的质谱离子化特征,结果表明,酸能显著增加双电荷离子的响应强度。7种目标物在相关范围内线性关系良好,相关系数不低于0.99,定量限为0.30~2.0 mug/kg,基质加标回收率为70.6%~96.1%,相对标准偏差为3.4%~9.6%。该方法前处理操作简便,灵敏度和准确度高,可实现鱼肉中多种微囊藻毒素的同时快速测定。
英文摘要	An analytical method was developed for the simultaneous and rapid determination of seven microcystins in fish meat by liquid chromatography-tandem mass spectrometry (LC-MS/MS) coupled with pass-through solid phase extraction (SPE). The samples were extracted with methanol-water (90∶10, v/v) after heat treatment by water bath at 80 ℃, and then cleaned up with an Oasis PRiME HLB pass-through SPE column. The samples were analyzed directly on a Waters XSelect HSS T3 column using 0.1% (v/v) aqueous formic acid and acidified acetonitrile (0.1% formic acid, v/v) as mobile phases. Qualitative and quantitative analysis of the analytes was carried out under the multiple reaction monitoring mode with positive electrospray ionization. The matrix matching external standard method was used for quantitation analysis. To solve the problem of parent ion selection of the microcystins, the ionization characteristics of microcystins were evaluated under different mobile phase conditions. Finally, the results showed that the acid could promote the intensity of the doubly charged ions significantly. The calibration curves were linear well in the corresponding concentration ranges, with correlation coefficient≥0.99. The limits of quantification ranged from 0.30 to 2.0 mug/kg. The average spiked recoveries for the seven microcystins were between 70.6% and 96.1% with the relative standard deviations of 3.4%-9.6%. The proposed method is sensitive, accurate, and efficient. It is applicable for the determination of microcystins in fish meat.
中文关键词	通过型固相萃取 ; 液相色谱-串联质谱 ; 双电荷离子 ; 微囊藻毒素 ; 鱼肉
英文关键词	pass-through solid-phase extraction liquid chromatography-tandem mass (LC-MS/MS) doubly charged ions microcystin (MC) fish meat
语种	中文
国家	中国
收录类别	CSCD
WOS类目	CHEMISTRY ANALYTICAL
WOS研究方向	Chemistry
CSCD记录号	CSCD:6050853
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236382
作者单位	1.浙江省水产质量检测中心, 杭州, 浙江 310023, 中国; 2.浙江工商大学海洋食品研究院, 杭州, 浙江 310012, 中国
推荐引用方式 GB/T 7714	李诗言,王扬,王鼎南,等. 通过型固相萃取-液相色谱-串联质谱法同时快速测定鱼肉中7种微囊藻毒素[J],2017,35(8):794-800.
APA	李诗言.,王扬.,王鼎南.,吴洪喜.,丁雪燕.,...&沈清.(2017).通过型固相萃取-液相色谱-串联质谱法同时快速测定鱼肉中7种微囊藻毒素.色谱,35(8),794-800.
MLA	李诗言,et al."通过型固相萃取-液相色谱-串联质谱法同时快速测定鱼肉中7种微囊藻毒素".色谱 35.8(2017):794-800.