贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
3期
167-169
,共3页
昆仑雪菊%农药残留%气质联用%固相萃取
昆崙雪菊%農藥殘留%氣質聯用%固相萃取
곤륜설국%농약잔류%기질련용%고상췌취
Coriopsis ticntoria%Pesticide residues%GC-MS/MS%SPE
为定量分析昆仑雪菊中有机磷类农药的残留，从市场采集雪菊样品，采用气相色谱串联质谱法对新疆昆仑雪菊中18种有机磷农药残留量进行检测。结果表明：在样品采用乙腈提取、固相萃取（SPE）柱净化后，所有农药在15 min 内完全分离并流出；在18种有机磷农药保留时间确定的串联质谱检测条件下，其2种添加浓度的加标回收率在71．2％～93．5％，相对标准偏差（RSD）在2．17％～6．20％。在0．05～1．0 mg/L 质量浓度范围内的线性关系良好（r 2＞0．99）。样品经过检测均未含有农药残留，该方法的灵敏度、精密度和准确度均满足农药残留分析要求，适用于雪菊中的有机磷农药残留的快速筛查与定性、定量分析。
為定量分析昆崙雪菊中有機燐類農藥的殘留，從市場採集雪菊樣品，採用氣相色譜串聯質譜法對新疆昆崙雪菊中18種有機燐農藥殘留量進行檢測。結果錶明：在樣品採用乙腈提取、固相萃取（SPE）柱淨化後，所有農藥在15 min 內完全分離併流齣；在18種有機燐農藥保留時間確定的串聯質譜檢測條件下，其2種添加濃度的加標迴收率在71．2％～93．5％，相對標準偏差（RSD）在2．17％～6．20％。在0．05～1．0 mg/L 質量濃度範圍內的線性關繫良好（r 2＞0．99）。樣品經過檢測均未含有農藥殘留，該方法的靈敏度、精密度和準確度均滿足農藥殘留分析要求，適用于雪菊中的有機燐農藥殘留的快速篩查與定性、定量分析。
위정량분석곤륜설국중유궤린류농약적잔류，종시장채집설국양품，채용기상색보천련질보법대신강곤륜설국중18충유궤린농약잔류량진행검측。결과표명：재양품채용을정제취、고상췌취（SPE）주정화후，소유농약재15 min 내완전분리병류출；재18충유궤린농약보류시간학정적천련질보검측조건하，기2충첨가농도적가표회수솔재71．2％～93．5％，상대표준편차（RSD）재2．17％～6．20％。재0．05～1．0 mg/L 질량농도범위내적선성관계량호（r 2＞0．99）。양품경과검측균미함유농약잔류，해방법적령민도、정밀도화준학도균만족농약잔류분석요구，괄용우설국중적유궤린농약잔류적쾌속사사여정성、정량분석。
To quantitatively analye organophosphorus pesticides in C. ticntoria, 18 kinds of organophosphorus pesticides in C. ticntoria were detected by Gas chromatography-tandem mass spectrometry.The gas chromatography-tandem mass spectrometry (GC-MS/MS)method was established for analysis of 18 organic phosphorus pesticides in C. ticntoria. The samples were extracted by acetonitrile,and cleaned up by SPE column;Then the extracts were determined with a MS/MS detector based on MRM,All of them were well separated within 15min.When the spiked average recoveries ranged from 71.2% to 93.5%.The RSD ranged from 2.17%~6.20%,The pesticides were of good linearity in the range of 0.05~1.0 mg/L.In the samples no pesticide residues were detected.The method was accurate and sensitive,which was suitable for analysis of various pesticides residues in C.ticntoria.
