CAJ | 학술논문

目的：利用电喷雾-高效离子迁移谱(ESI-HPIMS)对饮料中常见的甜味剂糖精钠和有可能残存的痕量马来酸进行检测。方法通过在饮料中加入糖精钠和马来酸标准品来模拟添加剂存留情况,添加后的饮料经简单的稀释,过滤等前处理,直接进样即可测定。结果研究结果表明,仪器对糖精钠和马来酸标准品的灵敏度达到了10-10数量级,最低检出限为0.1 ng/μL,6组平行数据的相对标准偏差(RSD)在1.2%~7.2%,线性相关系数均达到了r2大于0.99,单次测量时间低于10 s。结论实现了糖精钠和痕量马来酸的快速分析检测。
목적：이용전분무-고효리자천이보(ESI-HPIMS)대음료중상견적첨미제당정납화유가능잔존적흔량마래산진행검측。방법통과재음료중가입당정납화마래산표준품래모의첨가제존류정황,첨가후적음료경간단적희석,과려등전처리,직접진양즉가측정。결과연구결과표명,의기대당정납화마래산표준품적령민도체도료10-10수량급,최저검출한위0.1 ng/μL,6조평행수거적상대표준편차(RSD)재1.2%~7.2%,선성상관계수균체도료r2대우0.99,단차측량시간저우10 s。결론실현료당정납화흔량마래산적쾌속분석검측。
Objective Saccharin sodium and possible remaining maleic acid in beverages were detected by high performance ion mobility spectrometry with direct electrospray ionization (ESI-HPIMS). Methods By adding saccharin sodium and maleic acid standards into beverages to simulate real situation, the beverages were diluted, filtered, samples were injected into IMS directly. Results The research showed that the sensitivity of the instrument for saccharin sodium and maleic acid could reach 10-10 with detection of minimum standard 0.1 ng/mL, the relative standard deviation (RSD) of 6 parallel data was in the range of 1.2%~7.2%, with linear correlation coefficients r2>0.99. The single detection time was less than 10 s. Conclusion This method can achieve a rapid analysis of sodium saccharin and trace maleic acid.