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单词 sudan black b
释义

> as lemmas

Sudan black B
b. In names of particular dyes, as Sudan I, Sudan II, Sudan III, Sudan IV (also Sudan 1, Sudan 2, etc.); Sudan black (also Sudan black B), Sudan red, etc.
ΚΠ
1893 Jrnl. Soc. Dyers & Colourists 9 87/4 (table) Sudan II, and III... Sudan brown.
1894 A. G. Green tr. G. Schultz & P. Julius Syst. Surv. Org. Colouring Matters 66 (table) Sudan I..Benzene-azo-β-naphthol. C16H12N2O.
1939 T. L. Green Pract. Animal Biol. iv. 258 Repeat as above, but dip the smear into an aqueous solution of Sudan 3 which will stain the fat globules red.
1956 Nature 24 Mar. 586/1 This polybase..has the advantage of being stained by naphthalene black 12B as well as by sudan black.
1966 C. R. Leeson & T. S. Leeson Histol. i. 16/1 Fat can be detected in sections which have not been exposed to fat solvents by stains such as Sudan III, Sudan IV, and Sudan black B.
2003 Guardian 1 Aug. i. 8/5 Fresh chilli is not affected and checks are now being made on imports to ensure that products test negative for Sudan 1 before being allowed into Britain.
extracted from Sudann.
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as lemmas
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