浙江农业学报 ›› 2022, Vol. 34 ›› Issue (12): 2750-2758.DOI: 10.3969/j.issn.1004-1524.2022.12.18
张春荣(), 郭钤, 孔丽萍, 吴园园, 林琴, 许振岚, 汤涛(
)
收稿日期:
2021-09-28
出版日期:
2022-12-25
发布日期:
2022-12-26
通讯作者:
汤涛
作者简介:
*汤涛,E-mail:tangtao80@126.com基金资助:
ZHANG Chunrong(), GUO Qian, KONG Liping, WU Yuanyuan, LIN Qin, XU Zhenlan, TANG Tao(
)
Received:
2021-09-28
Online:
2022-12-25
Published:
2022-12-26
Contact:
TANG Tao
摘要:
建立固相萃取/超高效液相色谱-串联质谱(SPE/UPLC-MS/MS)检测白术鲜样及干样中井冈霉素和丙环唑残留的分析方法。样品经甲醇/水(9∶1,V/V)提取,Oasis HLB和 Cleanert AQ C18固相萃取小柱净化,HSS T3 超高效液相色谱柱进行分离,电喷雾正离子多重反应监测(MRM)模式进行测定。结果表明:浓度在0.000 1~0.1 mg·L-1 范围内,井冈霉素和丙环唑在溶剂及基质中的峰面积与其对应的质量浓度间线性关系良好,R2≥0.999 6。在添加 0.01、0.5、5.0 mg·kg-1 标准品浓度下,井冈霉素在白术中的添加回收率为72.4%~85.8%,相对标准偏差(RSD)为0.89%~6.20%;在添加0.005、0.1、1.0 mg·kg-1标准品浓度下,丙环唑在白术中的添加回收率为88.1%~98.9%,RSD为1.4%~4.8%。井冈霉素和丙环唑在白术中的定量限(LOQ)分别为0.01 mg·kg-1和0.005 mg·kg-1。通过对实际样品的检测,表明该方法操作简单,重复性好,准确度、精密度及检出限均可满足农药残留分析要求。
中图分类号:
张春荣, 郭钤, 孔丽萍, 吴园园, 林琴, 许振岚, 汤涛. 固相萃取/超高效液相色谱-串联质谱法测定白术中井冈霉素和丙环唑残留量[J]. 浙江农业学报, 2022, 34(12): 2750-2758.
ZHANG Chunrong, GUO Qian, KONG Liping, WU Yuanyuan, LIN Qin, XU Zhenlan, TANG Tao. Determination of jingangmycin and propiconazole in Atractylodes macrocephala by solid phase extraction/ultrahigh performance liquid chromatography-tandem mass spectrometry[J]. Acta Agriculturae Zhejiangensis, 2022, 34(12): 2750-2758.
化合物 Compound | 母离子 Precursor ion(m/z) | 子离子 Product ion(m/z) | 驻留时间 Retention time/ms | Q1偏转电压 Q1 bias voltage/V | 碰撞能量 Collision energy/eV | Q3偏转电压 Q3 bias voltage/V |
---|---|---|---|---|---|---|
井冈霉素Jiangangmycin A | 498.10 | 178.2*,124.3 | 100 | -24,-25 | -26,-40 | -21,-27 |
丙环唑Propiconazole | 341.90 | 159.0*,69.1 | 100 | -24,-25 | -35,-21 | -18,-28 |
表1 井冈霉素和丙环唑的质谱条件参数
Table 1 The LC-MS/MS parameters of jiangangmycin A and propiconazole
化合物 Compound | 母离子 Precursor ion(m/z) | 子离子 Product ion(m/z) | 驻留时间 Retention time/ms | Q1偏转电压 Q1 bias voltage/V | 碰撞能量 Collision energy/eV | Q3偏转电压 Q3 bias voltage/V |
---|---|---|---|---|---|---|
井冈霉素Jiangangmycin A | 498.10 | 178.2*,124.3 | 100 | -24,-25 | -26,-40 | -21,-27 |
丙环唑Propiconazole | 341.90 | 159.0*,69.1 | 100 | -24,-25 | -35,-21 | -18,-28 |
农药 Pesticide | 基质 Matrix | 添加浓度 Spiked concentration/(mg·kg-1) | 平均回收率 Average recovery/% | RSD/% |
---|---|---|---|---|
井冈霉素Jiangangmycin A | 鲜样Fresh samples | 0.01、0.5、5.0 | 72.4、83.5、85.8 | 3.0、2.8、2.9 |
干样Dry samples | 0.01、0.5、5.0 | 85.5、78.1、79.6 | 6.2、2.1、0.89 | |
丙环唑Propiconazole | 鲜样Fresh samples | 0.005、0.1、1.0 | 90.8、96.9、92.4 | 3.7、2.9、2.3 |
干样Dry samples | 0.005、0.1、1.0 | 98.9、93.3、88.1 | 4.8、1.4、3.0 |
表2 井冈霉素和丙环唑在白术空白样品中的加标回收率及相对标准偏差(n=5)
Table 2 Recoveries and RSDs of jingangmycin A and propiconazole in Atractylodes macrocephala(n=5)
农药 Pesticide | 基质 Matrix | 添加浓度 Spiked concentration/(mg·kg-1) | 平均回收率 Average recovery/% | RSD/% |
---|---|---|---|---|
井冈霉素Jiangangmycin A | 鲜样Fresh samples | 0.01、0.5、5.0 | 72.4、83.5、85.8 | 3.0、2.8、2.9 |
干样Dry samples | 0.01、0.5、5.0 | 85.5、78.1、79.6 | 6.2、2.1、0.89 | |
丙环唑Propiconazole | 鲜样Fresh samples | 0.005、0.1、1.0 | 90.8、96.9、92.4 | 3.7、2.9、2.3 |
干样Dry samples | 0.005、0.1、1.0 | 98.9、93.3、88.1 | 4.8、1.4、3.0 |
化合物 Compound | 时间 Time/d | 浙江省Zhejiang Province | 湖南省Hunan Province | 安徽省Anhui Province | 湖北省Hebei Province | ||||
---|---|---|---|---|---|---|---|---|---|
鲜样 Fresh samples | 干样 Dry samples | 鲜样 Fresh samples | 干样 Dry samples | 鲜样 Fresh samples | 干样 Dry samples | 鲜样 Fresh samples | 干样 Dry samples | ||
井冈霉素 | 28 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 |
Jiangangmycin A | 35 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 |
丙环唑 | 28 | 0.020 | 0.040 | 0.012 | 0.042 | 0.009 6 | 0.024 | 0.046 | 0.12 |
Propiconazole | 35 | 0.010 | 0.036 | 0.008 3 | 0.028 | <0.005 | 0.010 | 0.036 | 0.098 |
表3 井冈霉素和丙环唑在白术中的残留量
Table 3 Content of jiangangmycin A and propiconazole residues in Atractylodes macrocephala
化合物 Compound | 时间 Time/d | 浙江省Zhejiang Province | 湖南省Hunan Province | 安徽省Anhui Province | 湖北省Hebei Province | ||||
---|---|---|---|---|---|---|---|---|---|
鲜样 Fresh samples | 干样 Dry samples | 鲜样 Fresh samples | 干样 Dry samples | 鲜样 Fresh samples | 干样 Dry samples | 鲜样 Fresh samples | 干样 Dry samples | ||
井冈霉素 | 28 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 |
Jiangangmycin A | 35 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 | <0.010 |
丙环唑 | 28 | 0.020 | 0.040 | 0.012 | 0.042 | 0.009 6 | 0.024 | 0.046 | 0.12 |
Propiconazole | 35 | 0.010 | 0.036 | 0.008 3 | 0.028 | <0.005 | 0.010 | 0.036 | 0.098 |
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