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3篇 您的检索式:作者名="QAMAR Subhani"
    题名 作者 年代 出处 被引量
1离子色谱-柱后光化学衍生荧光检测法测定保健品中的核黄素显示文摘采用离子色谱(IC)和光化学衍生荧光检测(PCF)联用技术,建立了保健品中核黄素的分析方法.色谱柱选用Dionex Ion Pac AG11-HC保护柱(4mm×50mm)和Ion Pac AS11-HC分析柱(4mm×250mm),淋洗液为40mmol·L-1 NaOH.待测物通过自制光化学反应器(254nm)在线衍生,核黄素转化为强荧光物质,从而以荧光检测器检测.在优化的实验条件下,对50mg·L-1的核黄素溶液平行测定6次的保留时间和峰面积相对标准偏差分别为0.6%和2.1%(n=6).核黄素的浓度在10~100mg·L-1范围内与峰面积呈现良好的线性关系,线性相关系数r=0.993,检出限(S/N=10)为0.5mg·L-1,回收率为(101.46±2.51)%.曹盛林 陈郁 QAMAR Subhani 朱岩 吕伟德 2013浙江大学学报(理学版)2013,40,3:2
2Simultaneous determination of glucose, d -gluconic, 2-keto- d -gluconic and 5-keto- d -gluconic acids by ion chromatography-pulsed amperometric detection with column-switching technique显示文摘Zuoyi Zhu Lingling Xi Qamar Subhani Zhongping Huang Yan Zhu 2013Talanta2013,,:1
3Analysis of insecticide thiacloprid by ion chromatography combined with online photochemical derivatisation and fluorescence detection in water samples显示文摘This study describes a novel application of ion chromatography coupled with post-column photochemically induced fluorimetry derivatisation in alkaline medium and fluorescence detection(IC-hv-FD) for the determination of neonicotinoid pesticide, thiacloprid. In an aqueous medium, this compound showed fluorescence with an excitation maximum at 236 nm and an emission maximum at 353 nm. The 10 mmol/L NaOH with 10%(v/v) acetonitrile solution pumped at flow rate of 1.0 mL/min was used for the chromatographic elution to isocratically separate thiacloprid on an Ion Pac1 AS 11(250 mm 4 mm i.d; 13 mm particle size, Dionex) anion-exchange column. The linear concentration range of application was 0.04–10.0 mg/L, with a relative standard deviation(RSD, n = 7) of 1.7%(for a level of 2.0 mg/L) and detection limit(LOD, S/N = 3) of 9.9 mg/L. The procedure was applied with satisfactory results to the analysis of thiacloprid in ground and lake water samples. Pesticide average spiked recoveries ranged between 95.5% and 114.0%.Qamar Subhani Zhong-Ping Huang Zuo-Yi Zhu Lu-Ye Liu Yan Zhu 2014Chinese Chemical Letters2014,25,3:0
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