HETEROGENEOUS LOSS OF GASEOUS H2O2 IN ATMOSPHERIC AIR SAMPLING SYSTEM

被引：35

作者：

LEE, JH

CHEN, YZ

TANG, IN

机构：

[1] Environmental Chemistry Division, Department of Applied Science, Brookhaven National Laboratory, Upton

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1991年 / 25卷 / 02期

关键词：

D O I：

10.1021/es00014a019

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The extent of gaseous H2O2 losses in the sampling line of a fluorometric detector was investigated extensively. In some cases, as much as 90% of the gaseous H2O2 was lost by surface reactions taking place at the inlet region of the sampling line. Gaseous H2O2 measurement was found to be dependent not only on the sampling line cleanness, but on the ambient conditions as well. The generally adopted procedure using aqueous-phase H2O2 standards to calibrate the system is shown to be unsatisfactory. Instead, gas-phase H2O2 calibration is required for quantitative ambient measurements, and an effective procedure is recommended herein.

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页码：339 / 342

页数：4

相关论文

共 22 条

[1] CHEMICAL MECHANISMS OF ACID GENERATION IN THE TROPOSPHERE [J].

CALVERT, JG ;

LAZRUS, A ;

KOK, GL ;

HEIKES, BG ;

WALEGA, JG ;

LIND, J ;

CANTRELL, CA .

NATURE, 1985, 317 (6032) :27-35

[2] AVERAGE CONCENTRATIONS OF OH IN TROPOSPHERE, AND BUDGETS OF CH4 CO H-2 + CH3CCL3 [J].

CRUTZEN, PJ ;

FISHMAN, J .

GEOPHYSICAL RESEARCH LETTERS, 1977, 4 (08) :321-324

[3] APPLICATION OF A NESTED LOOP SYSTEM FOR THE FLOW-INJECTION ANALYSIS OF TRACE AQUEOUS PEROXIDES [J].

DASGUPTA, PK ;

HWANG, H .

ANALYTICAL CHEMISTRY, 1985, 57 (06) :1009-1012

[4] DIFFUSION SCRUBBER-BASED FIELD-MEASUREMENTS OF ATMOSPHERIC FORMALDEHYDE AND HYDROGEN-PEROXIDE [J].

DASGUPTA, PK ;

DONG, S ;

HWANG, H .

AEROSOL SCIENCE AND TECHNOLOGY, 1990, 12 (01) :98-104

[5] A METHOD FOR THE DETERMINATION OF HYDROGEN-PEROXIDE IN AIR [J].

HARTKAMP, H ;

BACHHAUSEN, P .

ATMOSPHERIC ENVIRONMENT, 1987, 21 (10) :2207-2213

[6] MEASUREMENTS OF H2O2 DURING WATOX-86 [J].

Heikes, B. ;

Walega, J. ;

Kok, G. ;

Lind, J. ;

Lazrus, A. .

GLOBAL BIOGEOCHEMICAL CYCLES, 1988, 2 (01) :57-61

[7] KINETICS OF OXIDATION OF SULFITE BY HYDROGEN-PEROXIDE IN ACIDIC SOLUTION [J].

HOFFMANN, MR ;

EDWARDS, JO .

JOURNAL OF PHYSICAL CHEMISTRY, 1975, 79 (20) :2096-2098

[8] METHODOLOGY FOR THE DETERMINATION OF GASEOUS-HYDROGEN PEROXIDE IN AMBIENT AIR [J].

JACOB, P ;

TAVARES, TM ;

KLOCKOW, D .

FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1986, 325 (04) :359-364

[9]

KLEINDIENST TE, 1988, ENVIRON SCI TECHNOL, V22, P55

[10] PHOTOCHEMICAL FORMATION OF PEROXIDES IN THE BOUNDARY-LAYER [J].

KLEINMAN, LI .

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 1986, 91 (D10) :889-904