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- [8] SPECIFIC SPOT-TEST FOR NITRITE WITH SULFAGUANIDINE FRESENIUS ZEITSCHRIFT FUR ANALYTISCHE CHEMIE, 1974, 268 (03): : 208 - 208
- [9] PRELIMINARY SPOT-TEST OF PARAQUAT ON AN ALKALI-IMPREGNATED PAPER FOLLOWED BY HEATING AND ITS CONFIRMATION BY PAPER-ELECTROPHORESIS EISEI KAGAKU-JAPANESE JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH, 1986, 32 (04): : 300 - 304