DIFFERENTIAL-PULSE POLAROGRAPHIC MICRODETERMINATION OF FORMALDEHYDE VIA IN-SITU DERIVATIZATION WITH GIRARDS REAGENT-T

被引：13

作者：

CHAN, WH ^{[1
]}

CHUNG, WC ^{[1
]}

CAI, PX ^{[1
]}

机构：

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

来源：

ANALYST | 1995年 / 120卷 / 08期

关键词：

FORMALDEHYDE; MICRODETERMINATION; DIFFERENTIAL-PULSE POLAROGRAPHY; ORGANIC ANALYSIS; GIRARDS REAGENT T;

D O I：

10.1039/an9952002233

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Formaldehyde, after in situ derivatization with Girard's reagent T, was determined in aqueous solution using differential-pulse polarography. A;single peak was obtained at pH 8 when using 1 x 10(-3) mol l(-1) NH4Cl/NH3 as the supporting electrolyte. The minimum detectable concentration of formaldehyde was 1.3 x 10(-6) mol l(-1). As little as 0.2 mu g of formaldehyde can be determined accurately by using this method. In addition, acetaldehyde was proven to not interfere with the formaldehyde determination.

引用

页码：2233 / 2236

页数：4

共 20 条

[1] DETERMINATION OF FORMALDEHYDE IN GAS MIXTURES BY CHROMOTROPIC ACID METHOD [J].