Evaluation of aldicarb chemical degradation

Yoneda, H.; Vasques, Regina M. P.; Matsunaga, Amélia K.

doi:10.1590/1808-1657v55n1-4p0611988

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COMUNICAÇÃO CIENTíFICA • Arq. Inst. Biol. 55 (1-4) • Jan-Dec 1988 • https://doi.org/10.1590/1808-1657v55n1-4p0611988 linkcopy

Evaluation of aldicarb chemical degradation

Authorship SCIMAGO INSTITUTIONS RANKINGS

Disposed water and left over chemical from the aldicarb plant were stored in a disposal container specially built for degradation research.

After 2/3 of the content was evaporated, it was treated with CaO, Na2, C03 and NaOHto keep the pH near 11 for aldicarb degradation.

Samples of this product were collected and analyzed by HPLC on C8 reverse phase column, and the presence of 3.9 to 21.5 ppm aldicarb, 4 to 8.5 ppm aldicarb oxime, n. d. to 1.1 ppm aldicarb nitrile were verified.

The results showed the degradation process to be efficienty.

KEY-WORDS
Aldicarb; degradation; high performance liquid chromatography.

Amostra	pH	Oxima de aldicarb	Mitrila de aldicarb	Aldicarb
1	12,70	71,4	116,5	0,1
2	11,52	4,0	0,5	N.D.
3	9	20,5	3,3	45,7
4	10,84	2,9	N.D.
5	10,87	não foi analisada
6	-	8,2	N.D.	9,3
7	10	8,5	1,1	3,9
8	9,95	4,0	N.D.	21,5

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E-mail: arquivos@biologico.sp.gov.br

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