【摘 要】
：
In a sulfuric acid medium, oxalate exhibits a strong catalytic effect on the oxidation of p-chloride aniline(ClBN) by dichromate, and the red oxidation product
【出 处】
：
Chemical Research in Chinese Universities
论文部分内容阅读
In a sulfuric acid medium, oxalate exhibits a strong catalytic effect on the oxidation of p-chloride aniline(ClBN) by dichromate, and the red oxidation product of ClBN has a maximum absorhancy at 520 nm. Based on this founding, a new FI method for determining oxalate was developed. A calibration curve of oxalate in the range of 0.40—17.0μg/mL was obtained. The detection limit was 0.10μg/mL. Sampling rate was 103-samples/h. The possible interference by the co-existing substances or ions was examined. This new method was applied to the determination of micro amounts of oxalate in real samples with satisfactory results.
In a sulfuric acid medium, oxalate exhibits a strong catalytic effect on the oxidation of p-chloride aniline (ClBN) by dichromate, and the red oxidation product of ClBN has a maximum absorhancy at 520 nm. Based on this founding, a new FI method The determination limit was 0.10 μg / mL. Sampling rate was 103-samples / h. The possible interference by the co-existing This new method was applied to the determination of micro amounts of oxalate in real samples with satisfactory results.
其他文献
为了解新生儿缺氧缺血性脑病（ＨＩＥ）患儿肾脏损害情况，我院儿科新生儿组与核医学科放免室从１９９３年开始应用血、尿β２微球蛋白（β２ｍｉｃｒｇｌｏｂｕｌｉｎ，β２Ｍ）检测ＨＩＥ患儿的肾功能。结果报道如下。１ 临床资料１．１ 一般资
Enantioselective alternating copolymerization of carbon monoxide with propylene was carried out using palladium catalyst modified by 1,4-3,6-dianhydro-2,5-dideo
非对称多势垒可获得比双势垒更大的共振隧穿电流及更良好的峰谷比。通过分析单电子对任意势垒透射的理论模型,建立了任意非对称三势垒模型,研究了不同偏压和温度对透射系数的
The crystal structure of the title compound (C 20 H 20 O 4, M r =324.36) has been determined by single crystal X ray diffraction. The crystal is m
鼻侧喙为罕见的先天性畸形，我科曾收治1例.行了外鼻成形术，术后外界形态好，现报告如下。患者，女，5岁，出生后即发现左鼻根分有一象鼻样赘生物生长，中间有一小孔，随年龄增大。检查：全身
患儿,女,岁。剧烈腹病、呕吐伴皮疹5天入院。入院后腹部仍持续性隐痛，阵发性加剧痛时辗转不安大汗淋漓，呕吐剧烈含有胆汁样物，不能进食，进饮。发病时皮肤阵发性出现等麻疹，其严重
苏联解体和苏国家计划委员会解散后,原协调各共和国之间经济活动的行政机构也随即崩溃。然而,各共和国对莫斯科的经济依赖关系却依然存在。
After the disintegration of t
The crystal structure of the title compound C16H18NO2+·C7H7SO3-·2H2O, (C23H29NSO7, Mr=463.53) has been determined by single-crystal X-ray diffraction analysis
ＥＮＩ集团是意大利国家石油天然气总公司,也是世界上一大跨国石油公司。每年１０月２７日公司都举行纪念活动,怀念公司的创始人恩里科·马太伊。“ＥＮＩ的名字永远和马太伊联系在一起”。ＥＮＩ集团正
党的十一届三中全会以来,我省有的地方逐步改革了支援社队投资的管理办法,坚持权责结合,推行了合同制。实践证明,合同制是提高支援社队投资效果的好办法,是符合客观经济规律