USE OF A ROBOTIC STATION FOR FULL AUTOMATION OF THE DETERMINATION OF ORGANIC-MATTER IN SOIL AND FERTILIZERS

被引:6
作者
TORRES, P
GARCIAMESA, JA
DECASTRO, MDL
机构
[1] Department of Analytical Chemistry, Faculty of Sciences, Univerity of Cordoba
来源
JOURNAL OF AUTOMATIC CHEMISTRY | 1994年 / 16卷 / 05期
关键词
D O I
10.1155/S1463924694000222
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A fully automatic method for the determination of organic matter has been implemented using a robotic station. The overall process involves weighing, dilution, oxidation in very harsh working conditions (K2Cr2O7 + concentrated H2SO4), dilution, centrifugation and photometric monitoring of the Cr(III) formed. Batches of six samples are manipulated by the robot, which also calibrates and delivers the results of the sample determination, both in soil and fertilizers, as percentages of organic matter which require slightly different sample treatment. The precision and validation of the method have been established using both types of samples and the results obtained compare well with those of the method used for routine analysis in official agricultural laboratories.
引用
收藏
页码:183 / 186
页数:4
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