| 气相色谱——质谱法测定水发海参中的甲醛 |
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| 作者姓名： | 张立臣 敖雪桔 赵永哲 |
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| 作者单位： | 齐齐哈尔市环境监测中心站; |
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| 摘 要： | 用气相色谱-质谱联机,使用特征离子定量法(GC-MS-SIM)测定水发海参中甲醛。摸索了样品提取方法,考察了样品提取时间及衍生条件等因素的影响,确定最佳提取条件为超声波振荡20min,衍生条件为2g/L的2,4-二硝基苯肼(DNPH)作衍生剂,避光反应6h。采用特征离子m/z63和m/z210进行GC-MS检测。结果表明:本法可消除复杂基体的干扰,简便快速,准确可靠,灵敏度高,回收率在86.4%～97.3%之间,检出限为0.1mg/kg。
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| 关 键 词： | 海参 气相色谱质谱 甲醛 |
Determining Formaldehyde in Sea Cucumber with Gas Chromatography-mass Spectrometry |
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| Authors: | Zhang Lichen Ao Xueju Zhao Yongzhe |
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| Institution: | Environment Monitoring Center Station of Qiqihar Qiqihar HeiLongjiang Province 161005 |
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| Abstract: | We determined formaldehyde in sea cucumber with Gas chromatography-mass spectrometry by GC-MS-SIM method.We researched on samples extracting method and effect factors such as extracting time and derivative condition,confirmed best extracting time is ultrasonic oscillation 20min.derivative condition is dark reaction 6h with DNPH as derivative agent.We determined with m/z 63 and m/z 210 as characteristic ion by GC-MS.The result showed that this method could eliminate the interference of complex matrix.The rec... |
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| Keywords: | Sea cucumber Gas chromatography-mass spectrometry Formaldehyde |
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