{"title":"一种自动精确测量单滴极谱滴下时间和记录完整电毛细管曲线的电子装置","authors":"B. Nygärd, K. Johansson, J. Olofsson","doi":"10.1016/0022-0728(66)80136-5","DOIUrl":null,"url":null,"abstract":"<div><p>The main principles of a new device for measuring polarographic drop-times is described. The instrument uses the periodic change of the electric impedance of the falling mercury drop to control an oscillator circuit. The equipment can be adapted to a normal d.c. polarograph. When it is connected with an XY-recorder it is possible to register complete electrocapillary curves. The method is illustrated by examples with strongly adsorbed sulphur- and selenium-compounds. On single drops, with the normal drop-time 3–5 sec, the standard deviation is less than 1 msec.</p></div>","PeriodicalId":100778,"journal":{"name":"Journal of Electroanalytical Chemistry (1959)","volume":"12 5","pages":"Pages 564-572"},"PeriodicalIF":0.0000,"publicationDate":"1966-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0022-0728(66)80136-5","citationCount":"13","resultStr":"{\"title\":\"An electronic device for automatic precision measurement of polarographic drop-times on single drops and for recording complete electrocapillary curves\",\"authors\":\"B. Nygärd, K. Johansson, J. Olofsson\",\"doi\":\"10.1016/0022-0728(66)80136-5\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The main principles of a new device for measuring polarographic drop-times is described. The instrument uses the periodic change of the electric impedance of the falling mercury drop to control an oscillator circuit. The equipment can be adapted to a normal d.c. polarograph. When it is connected with an XY-recorder it is possible to register complete electrocapillary curves. The method is illustrated by examples with strongly adsorbed sulphur- and selenium-compounds. On single drops, with the normal drop-time 3–5 sec, the standard deviation is less than 1 msec.</p></div>\",\"PeriodicalId\":100778,\"journal\":{\"name\":\"Journal of Electroanalytical Chemistry (1959)\",\"volume\":\"12 5\",\"pages\":\"Pages 564-572\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1966-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0022-0728(66)80136-5\",\"citationCount\":\"13\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Electroanalytical Chemistry (1959)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/0022072866801365\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Electroanalytical Chemistry (1959)","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0022072866801365","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An electronic device for automatic precision measurement of polarographic drop-times on single drops and for recording complete electrocapillary curves
The main principles of a new device for measuring polarographic drop-times is described. The instrument uses the periodic change of the electric impedance of the falling mercury drop to control an oscillator circuit. The equipment can be adapted to a normal d.c. polarograph. When it is connected with an XY-recorder it is possible to register complete electrocapillary curves. The method is illustrated by examples with strongly adsorbed sulphur- and selenium-compounds. On single drops, with the normal drop-time 3–5 sec, the standard deviation is less than 1 msec.