DIFFERENTIAL-PULSE POLAROGRAPHIC MICRODETERMINATION OF ETHANOL AND ITS APPLICATION TO BEER ANALYSIS

被引：20

作者：

CHAN, WH ^{[1
]}

LEE, AWM ^{[1
]}

CAI, PX ^{[1
]}

机构：

[1] ZHONGSHAN UNIV,DEPT CHEM,CANTON,PEOPLES R CHINA

来源：

ANALYST | 1992年 / 117卷 / 09期

关键词：

ETHANOL DETERMINATION; BEER ANALYSIS; INSITU GENERATION OF DITHIOCARBONATE; DIFFERENTIAL-PULSE POLAROGRAPHY; ORGANIC FUNCTIONAL GROUP ANALYSIS;

D O I：

10.1039/an9921701509

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Ethanol, after in situ derivatization to ethyl dithiocarbonate under phase-transfer catalysis, was determined in aqueous solution by differential-pulse polarography. A supporting electrolyte of NH4Cl-KH2PO4-NaOH containing eosin was found to be essential in this determination. For the microdetermination of ethanol, this method was proved to be precise, and the detection limit was 0.02% or 0.02 mg (absolute amount of ethanol). The viability of the proposed method for beer analysis has also been established.

引用

页码：1509 / 1512

页数：4

共 7 条

[1] FRUNISS BS, 1989, VOGELS TXB PRACTICAL, P792
[2] Heyrovsky J., 1966, PRINCIPLES POLAROGRA
[3] Kolthoff I.M.I.M., 1952, POLAROGRAPHY
[4] ONE POT PHASE-TRANSFER SYNTHESIS OF O-ALKYL, S-METHYL DITHIOCARBONATES (XANTHATES)
LEE, AWM
CHAN, WH
WONG, HC
WONG, MS
[J]. SYNTHETIC COMMUNICATIONS, 1989, 19 (3-4) : 547 - 552
[5] SMYTH WF, 1979, POLAROGRAPHY MOL BIO, P28
[6] POLAROGRAPHIC DETERMINATION OF XANTHATES IN FLOTATION LIQUORS
SUN, SC
HOLZMANN, RT
[J]. ANALYTICAL CHEMISTRY, 1957, 29 (09) : 1298 - 1300
[7] Zuman P, 1964, ORGANIC POLAROGRAPHI

← 1 →