摘要
使用IC法首次对兰州市区降水中的有机酸(甲酸和乙酸)浓度进行了连续的测定和研究.测得该地区降水中有机酸约占阴离子的6.88％,占总离子的2.50％。其浓度范围为甲酸0.31～1.63mg/L,乙酸0.50～0.91mg/L。在加测有机酸后,降水中阴离子与阳离子间的平衡状况有所改善.
It is the first time that concentration of organic acid (formic acid and acetic acid in precipitation for Lanzhou City is continuously determined and studied by IC method. The results show that organic acid accounts for 6.88 percent of negation ion and 2.50 percent of total ion in precipitation for the region.The ion concentration ranges 0. 31-1.63 (mg/L) for formic acid and 0.50-0.91 (mg/L) for acetic acid. The balance condition between negative ion and positive ion has been improved after measuring orga nic acid.
出处
《水科学进展》
EI
CAS
CSCD
1993年第2期135-140,共6页
Advances in Water Science
关键词
降水
离子色谱
有机酸
兰州市
precipitation
ion chromatograph
organic acid.
