PHYSICAL-CHEMICAL CHARACTERIZATION OF 5 EARTHY-MUSTY-SMELLING COMPOUNDS

被引：47

作者：

PIRBAZARI, M

BOROW, HS

CRAIG, S

RAVINDRAN, V

MCGUIRE, MJ

机构：

[1] ECOVA CORP,REDMOND,WA 98105

[2] ENGN SCI INC,PASADENA,CA 91103

[3] METROPOLITAN WATER DIST SO CALIF,LOS ANGELES,CA 90054

来源：

WATER SCIENCE AND TECHNOLOGY | 1992年 / 25卷 / 02期

关键词：

TASTES AND ODORS; GEOSMIN; 2-METHYLISOBORNEOL; 2-ISOBUTYL-3-METHOXY PYRAZINE; 2-ISOPROPYL-3-METHOXY PYRAZINE; 2,4,6-TRICHLOROANISOLE; PHYSICAL CHEMICAL PROPERTIES; MICROANALYTICAL TECHNIQUES;

D O I：

10.2166/wst.1992.0038

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The occurrence of earthy-musty taste and odors in potable water supplies has been attributed to the presence of several organic compounds at ng/l, including geosmin, 2-methylisoborneol (MIB), 2-isobutyl-3-methoxy pyrazine, 2-isopropyl-3-methoxy pyrazine and 2,4,6-trichloroanisole. Microanalytical techniques were employed for determining the physical/chemical properties of these compounds, hitherto uncharacterized. The properties determined were melting point, boiling point, refractive index, density, aqueous solubility, octanol/water partition coefficient and Henry's law constant. Since standard micromethods could not be employed for geosmin and MIB because of their scarcity, either these methods were refined or new procedures were developed. The experimental techniques were tested with reference compounds, the properties of which were reported in the literature. Statistical analysis reflected the accuracy and reproducibility of these procedures.

引用

页码：81 / 88

页数：8

共 29 条

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