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1.华北理工大学 公共卫生学院,河北 唐山 063210
2.华北理工大学 电气工程学院,河北 唐山 063210
3.华北理工大学附属医院,河北 唐山 063000
封成玲,硕士,研究方向:卫生分析化学,E-mail:fcling2023@163.com
王曼曼,博士,教授,研究方向:卫生分析化学,E-mail:mmwangheuu@126.com
纸质出版日期:2024-05-15,
收稿日期:2024-01-02,
修回日期:2024-01-29,
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赵志栋,夏磊,赵俊暕,崔传金,封成玲,王曼曼.ZIF-8泡腾辅助分散固相萃取结合高效液相色谱-串联质谱法测定人尿液中苯二氮卓类药物[J].分析测试学报,2024,43(05):682-689.
ZHAO Zhi-dong,XIA Lei,ZHAO Jun-jian,CUI Chuan-jin,FENG Cheng-ling,WANG Man-man.Determination of Benzodiazepines in Human Urine Sample by HPLC-MS/MS Combined with ZIF-8 Based Effervescent Tablet-assisted Dispersive Solid-phase Extraction[J].Journal of Instrumental Analysis,2024,43(05):682-689.
赵志栋,夏磊,赵俊暕,崔传金,封成玲,王曼曼.ZIF-8泡腾辅助分散固相萃取结合高效液相色谱-串联质谱法测定人尿液中苯二氮卓类药物[J].分析测试学报,2024,43(05):682-689. DOI: 10.12452/j.fxcsxb.24010203.
ZHAO Zhi-dong,XIA Lei,ZHAO Jun-jian,CUI Chuan-jin,FENG Cheng-ling,WANG Man-man.Determination of Benzodiazepines in Human Urine Sample by HPLC-MS/MS Combined with ZIF-8 Based Effervescent Tablet-assisted Dispersive Solid-phase Extraction[J].Journal of Instrumental Analysis,2024,43(05):682-689. DOI: 10.12452/j.fxcsxb.24010203.
发展了基于沸石咪唑酯骨架材料-8(ZIF-8)的泡腾辅助分散固相萃取(ET-DSPE)技术,结合高效液相色谱-串联质谱法(HPLC-MS/MS)对人
尿液中艾司唑仑、阿普唑仑、地西泮、三唑仑和劳拉西泮5种苯二氮卓类药物(BZDs)进行分析。采用傅里叶变换红外光谱、X射线衍射仪、扫描电子显微镜和全自动比表面积及孔隙分析仪对ZIF-8进行表征,并考察了ZIF-8和Na
2
CO
3
用量、吸附时间、溶液pH值及离子强度、尿液稀释比例、洗脱溶剂、洗脱体积和时间对BZDs萃取效率的影响。在最佳条件下,艾司唑仑在0.002~100 ng/mL,其余4种BZDs在0.001~100 ng/mL范围内线性关系良好(
r
≥0.999),检出限和定量下限分别为0.000 3~0.000 6 ng/mL和0.001~0.002 ng/mL,3个加标水平下的回收率为81.6%~108%,日内和日间相对标准偏差分别为1.4%~5.6%和1.4%~9.9%。该方法不仅能够直接处理原始尿液,无需稀释和去蛋白操作,而且通过泡腾辅助分散,对BZDs的富集倍数达40.8~54.0倍,实现了尿液中5种BZDs的准确、简便和灵敏分析。
In this study,zeolitic imidazolate framework-8(ZIF-8) based on effervescent tablet-assisted dispersive solid-phase extraction method(ET-DSPE) was developed and coupled with high performance liquid chromatography tandem mass spectrometry(HPLC-MS/MS) for the determination of five benzodiazepines(BZDs) in human urine samples,including estazolam,alprazolam,diazepam,triazolam and lorazepam. The prepared ZIF-8 sorbent was characterized by Fourier transform infrared spectroscopy,X-ray powder diffractometry,scanning electron microscopy,automatic specific surface area and pore analyzer,and the results showed that ZIF-8 nanoparticles with rhombohedral dodecahedral structure were successfully synthesized. The extraction parameters of the adsorption and elution processes were optimized in detail,involving amount of ZIF-8 sorbent and Na
2
CO
3
,adsorption time,pH and ionic strength of solution,urine dilution ratio,elution solvent,elution volume and time. The optimal conditions were shown as follows:ZIF-8 amount,35 mg;Na
2
CO
3
amount,20 mg;adsorption time,4 min;pH and ionic strength of the solution,no adjustment;urine dilution ratio,no dilution;elution,1.0 mL of methanol;elution time,30 min. Under the optimized conditions,the proposed method provided the linear ranges of 0.002-100 ng/mL for estazolam and 0.001-100 ng/mL for the other four analytes(
r
≥0.999). The limits of detection(
S
/
N
=3) and the limits of quan
tification(
S
/
N
=10) of five BZDs were in the ranges of 0.000 3-0.000 6 ng/mL and 0.001-0.002 ng/mL,respectively. Besides,the recoveries for spiked urine samples with three concentration levels varied from 81.6% to 108% with the intra-day relative standard deviations(RSDs) and inter-day RSDs of 1.4%-5.6% and 1.4%-9.9% separately. Compared with the previous pretreatment methods for BZDs in urine samples,ZIF-8 based effervescent tablet-assisted dispersive solid-phase extraction method allowed direct loading of crude urine samples without any filtration or dilution step. Besides,the effervescent tablet-assistance facilitated a well dispersion and an adequate adsorption,offering the enhancement factor of 40.8-54.0. The developed method achieved a strategy for the accurate,convenient and sensitive determination of five BZDs in human urine samples.
尿液苯二氮卓类药物泡腾辅助分散固相萃取高效液相色谱-串联质谱法
urinebenzodiazepineseffervescent tablet-assisted dispersive solid-phase extractionhigh performance liquid chromatography tandem mass spectrometry(HPLC-MS/MS)
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