ULTRAMICRO SEMIAUTOMATED METHOD FOR SIMULTANEOUS DETERMINATION OF TOTAL PHOSPHORUS AND TOTAL KJELDAHL NITROGEN IN WASTEWATERS

被引:35
作者
JIRKA, AM [1 ]
CARTER, MJ [1 ]
MAY, D [1 ]
FULLER, FD [1 ]
机构
[1] USEPA, CENT REG LAB, CHICAGO, IL 60609 USA
关键词
D O I
10.1021/es60121a003
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
An ultramicro technique for the digestion of organic N and P compounds in wastewater samples is described. The digests are analyzed simultaneously for phosphate and ammonia in the range of 0.02-2.00 mg P/l and of 0.06-10.00 mg N/l using automated spectrophotometry at the rate of 30 samples/h. The accuracy, precision and tolerance to common interferences of the ultramicro method are discussed. Comparability testing of the ultramicro and standard methods shows a small but statistically significant difference for the P but not for the N results.
引用
收藏
页码:1038 / 1044
页数:7
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