THE MEASUREMENT OF LOW CONCENTRATIONS OF AMMONIA IN THE ATMOSPHERE BY FLOW-INJECTION ANALYSIS

被引：5

作者：

BRISTOW, AW

机构：

[1] AFRC, Institute of Grassland and Environmental Research, North Wyke Okehampton, Devon

来源：

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS | 1991年 / 22卷 / 17-18期

关键词：

D O I：

10.1080/00103629109368532

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

A flow injection procedure, based on the reaction between ammonia, salicylate, nitroprusside and alkaline dichlorisocyanurate, was developed which enabled changes in the concentration of ammonia in the atmosphere to be monitored at 15 minute intervals. The detection limit was 10 ppb NH3-N in solution for a working range of 0 - 1000 ppb, corresponding to a concentration in the air of 4-mu-g NH3-N/m3. Regression analysis revealed a complex inter-relationship between the concentrations of the reagents. The method was validated by the close correlation obtained between the results with a cross-check analysis by ion chromatography and its use demonstrated by following the volatilization of ammonia from a soil core treated with urine.

引用

页码：1741 / 1752

页数：12

共 15 条

[1]

[Anonymous], 1987, ANALYST, V112, P199

[2] AMMONIA EMISSIONS AND THEIR ROLE IN ACID DEPOSITION [J].