| 玫瑰红银分光光度法测定纳米银胶体溶液中的痕量银 |
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| 引用本文： | 李明春,赵丽艳,马守栋,曹恩惠. 玫瑰红银分光光度法测定纳米银胶体溶液中的痕量银[J]. 中国医院药学杂志, 2011, 0(8) |
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| 作者姓名： | 李明春 赵丽艳 马守栋 曹恩惠 |
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| 作者单位： | 中国人民解放军济南军区第401医院药剂科; |
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| 基金项目： | 国家科技重大专项基金(编号:2008ZXJ09004-045) |
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| 摘 要： | 目的:建立纳米银胶体溶液中银的含量测定方法。方法:以浓硝酸作溶剂溶解纳米粒沉淀后,在表面活性剂作用下,与对二甲氨基苄基罗丹宁(玫瑰红银试剂)反应生成橙红色络合物,采用紫外分光光度法,于475nm波长处检测银含量。结果:测得银离子在0.05～1.50mg.L-1范围内,吸光度与浓度呈良好线性关系(r=0.999 9);平均回收率为96.04%(n=9,RSD为1.82%)。结论:上述方法操作简便,便于开展,方法灵敏,适用于测定纳米银胶体溶液中主要成分的含量测定。
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| 关 键 词： | 纳米银胶体溶液 分光光度法 玫瑰红银试剂 含量测定 |
Determination of trace silver in nano-silver colloid solutions by UV spectrophotometry |
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| LI Ming-chun,ZHAO Li-yan,MA Shou-dong,CAO En-hui. Determination of trace silver in nano-silver colloid solutions by UV spectrophotometry[J]. Chinese Journal of Hospital Pharmacy, 2011, 0(8) |
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| Authors: | LI Ming-chun ZHAO Li-yan MA Shou-dong CAO En-hui |
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| Affiliation: | LI Ming-chun,ZHAO Li-yan,MA Shou-dong,CAO En-hui (Pharmacy Department of the 401st Hospital of Chinese PLA Jinan Military Area Command,Shandong Qingdao 266071,China) |
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| Abstract: | OBJECTIVE To develop a method for the ultraviolet-visible spectrophotometric(UV) determination of silver in nanosilver colloid solutions.METHODS After dissolved by concentracted nitroic acid,the sample was reacted with 4-dimethylaminobenzal rhodanine agent.And then the product was determined by UV detection at wavelength of 475 nm.RESULTS The manipulation is simple and convenient,and when added different concentrations of standard silver solution to three brand colloid solutions,the mean recovery of the sil... |
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| Keywords: | nano-silver colloid solutions visible spectrophotometry 4-dimethylaminobenzal rhodanine agent content mensuration |
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