| 精氨酸与2,3-二氯-5,6-二氰-1,4-苯醌的荷移反应研究 |
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| 引用本文： | 杨春梅,李省云.精氨酸与2,3-二氯-5,6-二氰-1,4-苯醌的荷移反应研究[J].分析科学学报,2012,28(3):405-407. |
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| 作者姓名： | 杨春梅 李省云 |
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| 作者单位： | 太原师范学院化学系,山西太原,030031 |
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| 基金项目： | 山西省高校科技开发项目 |
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| 摘 要： | 用分光光度法研究了精氨酸与2,3-二氯-5,6-二氰-1,4-苯醌(DDQ)的荷移反应。实验表明,在硼砂溶液中,精氢酸与DDQ在室温下反应30min可获得稳定的络合物,其组成比为2∶1,λmax=342nm,表观摩尔吸光系数ε=1.65×104 L.mol-1.cm-1,线性范围为2～30μg/mL。应用拟定的方法测定了盐酸精氨酸注射液的含量,结果与文献方法一致,回收率在97.2%～98.1%之间,相对标准偏差小于3.1%。
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| 关 键 词： | 精氨酸 2 3-二氯-5 6-二氰-1 4-苯醌 荷移反应 分光光度法 |
Study on Charge Transfer Reaction of L-Arginine with 2,3-Dichloro-5,6-chicyano-1,4-benzoquinone |
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| YANG Chun-mei
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LI Sheng-yun.Study on Charge Transfer Reaction of L-Arginine with 2,3-Dichloro-5,6-chicyano-1,4-benzoquinone[J].Journal of Analytical Science,2012,28(3):405-407. |
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| Authors: | YANG Chun-mei LI Sheng-yun |
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| Institution: | (Department of Chemistry,Taiyuan Normal University,Taiyuan030031) |
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| Abstract: | A simple,quick and sensitive spectrophotometric method was established for the determination of L-arginine,based on charge transfer reaction with 2,3-dichloro-5,6-chicyano-1,4-benzoquinone(DDQ) in borax buffer solution.The apparent molar absorptivity of the complex was determined as 1.65×104L.mol-1.cm-1 at 342nm.The calibration curve was linear in the concentration rang of 2～30 μg/mL.The composition of complex of L-arginine with DDQ was found to be 2∶1by Job’s method.The proposed method has been applied to the determination of L-arginine in injections with satisfactory results. |
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| Keywords: | L-Arginine 2 3-Dichloro-5 6-chicyano-1 4-benzoquinone Charge transfer reaction Spectrophotometry |
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