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Author:

郭伟 (郭伟.) | 岳峻辉 (岳峻辉.) | 张岚 (张岚.) | 李军 (李军.) (Scholars:李军)

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incoPat zhihuiya

Abstract:

超声‑固相萃取‑液质联用同时检测市政污泥中6种人工甜味剂的方法,属于环境分析领域。分别将安赛蜜、甜蜜素、糖精、三氯蔗糖、阿斯巴甜、纽甜6种人工甜味剂标准品配置成母液,之后进行逐级稀释配置多个浓度梯度的标准混合溶液,建立标准曲线,采用Aglient高效液相色谱柱分离人工甜味剂组分,采用梯度洗脱的方式,通过保留时间和质荷比对每种人工甜味剂定性,用内标法消除仪器误差和基质影响对6种人工甜味剂定量。将市政污泥样品冷冻干燥研磨过筛,0.1g过筛样品与5mL体积比1:1的甲醇/超纯水混合后超声萃取离心,上清液pH调到3,后用固相萃取进行净化和浓缩,最后通过高效液相色谱串联质谱仪进行检测分析。本方法检测限低、灵敏度高、可靠性强。

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Patent Info :

Type: 发明申请

Patent No.: CN202110952555.6

Filing Date: 2021-08-19

Publication Date: 2021-11-23

Pub. No.: CN113686986A

Applicants: 北京工业大学

Legal Status: 驳回

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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