固相微萃取-便携式气相色谱-串联质谱法现场测定水中的2-甲基异莰醇和土臭素

引用本文: 段炼, 邓嘉辉, 刘立鹏, 陈梦婷, 马乔. 固相微萃取-便携式气相色谱-串联质谱法现场测定水中的2-甲基异莰醇和土臭素[J]. 分析化学, 2019, 47(4): 527-532. doi: 10.19756/j.issn.0253-3820.181275 shu

Citation: DUAN Lian, DENG Jia-Hui, LIU Li-Peng, CHEN Meng-Ting, MA Qiao. Determination of 2-Methylisoborneol and Geosmin in Water Using Portable Gas Chromatography-Tandem Mass Spectrometry Coupled with Solid Phase Micro-extraction in Field[J]. Chinese Journal of Analytical Chemistry, 2019, 47(4): 527-532. doi: 10.19756/j.issn.0253-3820.181275 shu

固相微萃取-便携式气相色谱-串联质谱法现场测定水中的2-甲基异莰醇和土臭素

段炼 ^1, ,
邓嘉辉 ^1, ,
刘立鹏 ^1, ,
陈梦婷 ^2, ,
马乔 ^1,

1.
聚光科技(杭州)股份有限公司, 杭州 310052;
2.
浙江树人大学, 杭州 310015
基金项目:
本文系国家重大科学仪器设备开发项目（No.SQ2016YFZG010243）资助

摘要: 建立了固相微萃取-便携式气相色谱-串联质谱法（SPME-portable GC-MS/MS）现场测定水中的2-甲基异莰醇（2-MIB）和土臭素（GSM）的方法。优化了选择反应监测（SRM）的仪器条件，考察了SPME方法的搅拌速度、萃取时间、萃取温度对富集效果的影响，确定最佳的实验条件为：搅拌速度1200 r/min，萃取温度70℃，萃取时间40 min。2-MIB和GSM方法的检出限（LOD）分别为1.1和0.5 ng/L，定量限（LOQ）分别为3.6和1.8 ng/L，线性范围为5~100 ng/L，相关系数分别为0.9922和0.9996。目标物加标浓度为10~100 ng/L时，平均回收率在91.5%~107.9%之间，相对标准偏差（RSD）≤10.1%（n=6）。本方法结合了SPME法操作简单、快捷和串联质谱法高灵敏度、高选择性的优点，现场检测性能可达到实验室标准方法水平，适于水中2-MIB和GSM的现场分析检测。

关键词:

English

Determination of 2-Methylisoborneol and Geosmin in Water Using Portable Gas Chromatography-Tandem Mass Spectrometry Coupled with Solid Phase Micro-extraction in Field

1.
Focused Photonics Inc, Hangzhou 310052, China;
2.
Zhejiang Shuren University, Hangzhou 310015, China
Received Date: 25 April 2018
Revised Date: 04 January 2019
Fund Project:
This work was supported by the National Key Scientific Instrument and Equipment Development Project of China (No. SQ2016YFZG010243).

Abstract: A solid phase micro-extraction coupled with portable gas chromatography-tandem mass spectrometry method for field analysis was developed for the determination of 2-methylisoborneol(2-MIB)and geosmin(GSM)in water. The selective reaction monitoring(SRM)parameters were optimized. The SPME conditions such as stirring rate, extraction time and extraction temperature were investigated. Optimum SPME conditions were as follows:stirring rate of 1200 r/min, extraction time of 40 min, extraction temperature of 70℃. Limits of detection of 2-MIB and GSM were 1.1 ng/L and 0.5 ng/L respectively. Limits of quantification were 3.6 ng/L and 1.8 ng/L respectively. Linear detection range was 5-100 ng/L with correlation coefficients of 0.9922 and 0.9996, respectively. At the spiked level of 10-100 ng/L, the average recoveries of target compounds were 91.5%-107.9% with RSDs ≤ 10.1%(n=6). This method combines simplicity and rapidtity of SPME and high sensitivity and high selectivity of tandem mass spectrometry, and performance of the method is comparable to that of national standard method. It is especially suitable for the field determination of 2-MIB and geosmin GSM in real water samples.

Key words:

2-Methylisoborneol
/ Geosmin
/ Solid phase micro-extraction
/ Portable gas chromatography-mass spectrometry
/ Tandem mass spectrometry
/ Field analysis
/ Water

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沈阳化工大学材料科学与工程学院沈阳 110142

固相微萃取-便携式气相色谱-串联质谱法现场测定水中的2-甲基异莰醇和土臭素

English

Determination of 2-Methylisoborneol and Geosmin in Water Using Portable Gas Chromatography-Tandem Mass Spectrometry Coupled with Solid Phase Micro-extraction in Field

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

固相微萃取-便携式气相色谱-串联质谱法现场测定水中的2-甲基异莰醇和土臭素

English

Determination of 2-Methylisoborneol and Geosmin in Water Using Portable Gas Chromatography-Tandem Mass Spectrometry Coupled with Solid Phase Micro-extraction in Field

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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