1.湖北省食品质量安全监督检验研究院,湖北省食品质量安全检测工程技术研究中心,湖北 武汉 430075
2.上海爱博才思分析仪器贸易有限公司,上海 200335
江丰,硕士,高级工程师,研究方向:食品安全与检测,E - mail:349136833@qq.com
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夏金涛,吴婉琴,朱松松等.固体饮料中一种新型卡巴地那非类似物的定性鉴别和定量分析[J].分析测试学报,2022,41(05):754-760.
XIA Jin-tao,WU Wan-qin,ZHU Song-song,et al.Qualitative and Quantitative Identification of a New Carbadenafil Analogue in Solid Beverages[J].Journal of Instrumental Analysis,2022,41(05):754-760.
夏金涛,吴婉琴,朱松松等.固体饮料中一种新型卡巴地那非类似物的定性鉴别和定量分析[J].分析测试学报,2022,41(05):754-760. DOI: 10.19969/j.fxcsxb.21082001.
XIA Jin-tao,WU Wan-qin,ZHU Song-song,et al.Qualitative and Quantitative Identification of a New Carbadenafil Analogue in Solid Beverages[J].Journal of Instrumental Analysis,2022,41(05):754-760. DOI: 10.19969/j.fxcsxb.21082001.
采用超高效液相色谱 - 四极杆 - 飞行时间高分辨质谱(UPLC - Q - TOF MS)、超高效液相色谱 - 线性离子阱/静电场轨道阱高分辨质谱(UPLC - LTQ/Orbitrap MS)筛查出固体饮料中一种新型的、结构未知的非法添加卡巴地那非类似物。经核磁共振(Bruker)一维、二维谱和文献分析,确定该物质为N-苯基丙氧苯基卡巴地那非。通过高效液相色谱 - 串联质谱(HPLC - MS/MS)外标法定量分析表明,N-苯基丙氧苯基卡巴地那非在2~50 ng/mL质量浓度范围内线性关系良好,相关系数(,r,2,)为0.999 1,方法检出限为0.05 mg/kg,定量下限为0.1 mg/kg,在低、中、高3个加标水平下的平均回收率为89.2%~93.1%,相对标准偏差(RSD)为1.8%~3.1%。采用该方法测定10批次固体饮料,发现5批次阳性样品,N-苯基丙氧苯基卡巴地那非的检出含量为214~880 mg/kg。该方法的准确度高、灵敏度好,可作为筛查非法添加卡巴地那非类似物的有效方法。
A high performance liquid chromatography - tandem mass spectrometry(HPLC - MS/MS)was developed for the qualitative and quantitative identification of a novel,illegally added and unknown carbadenafil analogue,N-phenylpropoxyphenyl carbadenafil in solid beverages.The sample was firstly identified by using ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry(UPLC - Q - TOF MS) and ultra-performance liquid chromatography - linear ion trap/orbitrap high resolution mass spectrometry(UPLC-LTQ/Orbitrap MS).Then the structure of this compound was finally determined as N-phenylpropoxyphenyl carbadenafil by one-dimensional and two-dimensional nuclear magnetic resonance(NMR) spectra and textual comparison.Quantitative analysis was carried out by the external standard method. Results showed that there was a good linear relationship for the analyte in the range of 2 - 50 ng/mL,with correlation coefficient(,r,2,) of 0.999 1.The limit of detection(LOD) and quantification(LOQ) were 0.05 mg/kg and 0.1 mg/kg,respectively. Recoveries at low,medium and high spiked levels ranged from 89.2% to 93.1%, with relative standard deviations(RSD)of 1.8% - 3.1%. Determination on 10 batches of coffee solid beverages revealed that 5 batches of samples were found to be positive,and the contents of N-phenylpropoxyphenyl carbadenafil were between 214 mg/kg and 880 mg/kg. With high accuracy and high efficiency,this method is effective for the screening of illegally added carbadenafil analogs beyond the detection range of current standard.
咖啡卡巴地那非类似物非法添加结构鉴定定量分析
coffeecarbadenafil analogsillegal additionstructure identificationquantitative analysis
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