DETERMINATION OF L.D. 50 OF COBALTOUS CHLORIDE, CADMIUM CHLORIDE, SODIUM ARSENITE, AND ALLYL ISOTHIOCYANATE IN THE DADDY SCULPIN

1969 ◽  
Vol 61 (2_Suppl) ◽  
pp. S33-S47
Keyword(s):  
Cadmium Chloride ◽  
Sodium Arsenite ◽  
Allyl Isothiocyanate ◽  
Cobaltous Chloride

Allyl Isothiocyanate in Mustard Seed

1970 ◽  
Vol 53 (1) ◽  
pp. 1-3 ◽  
Author(s):  
Donald L Andersen
Keyword(s):  
Allyl Isothiocyanate ◽  
Mustard Seed ◽  
Official Method ◽  
Average Recovery ◽  
Aoac Method ◽  
Aoac Official ◽  
Mustard Seeds ◽  
Column Preparation ◽  
Aoac Official Method

Abstract A new GLC method for the determination of allyl isothiocyanate in mustard seed was compared to a method of the Midwest Research Institute and to a combination of the AOAC official method and the proposed method. Twelve collaborators compared the AOAC method and the GLC method, using whole mustard seeds. Each collaborator assayed three seed portions by both methods. The range, standard deviation, and coefficient of variation are less for each seed portion by the proposed than by the official method. The average recovery value of allyl isothiocyanate in the prepared standard solutions is lower, using the proposed GLC procedure, but seed assay values are significantly and consistently higher for each seed portion when compared with the results for the AOAC method. Reports from the collaborators also indicate that the proposed method is rugged, as the GLC column preparation was subjected to many changes. It is recommended that the GLC method be adopted as official first action.

scholarly journals The Theory of Wetting, and the Determination of the Wetting Power of Dipping and Spraying Fluids containing a Soap Basis

1915 ◽  
Vol 7 (2) ◽  
pp. 219-239 ◽  
Author(s):  
W. F. Cooper ◽  
W. H. Nuttall
Keyword(s):  
United States ◽  
South Africa ◽  
Active Substance ◽  
Sodium Arsenite ◽  
The United States ◽  
Active Constituent ◽  
Wetting Power ◽  
The Government

The dipping of sheep and cattle, as a means of eradicating ‘scab,’ lice, ticks, etc., and the diseases which it is now known the latter may transmit, has met with such success, that compulsory dipping is now in vogue in most pastoral countries. Where compulsory dipping obtains, there must of necessity be some system of the standardisation of dips. In Queensland and South Africa, the respective Governments issue official formulae from which the stockbreeder can prepare his own dipping fluid. Only such proprietary dips, as are duly recognised by the Government, may be employed. In the United States, the regulations for the sale of proprietary dips are still more stringent. The quantity of active substance, usually sodium arsenite, nicotine or cresylic acid, is defined within very narrow limits. Further, no proprietary dip is now recognised, unless the manufacturer can furnish a ‘Field Tester,’ by means of which the stockbreeder can himself determine, in a simple and fairly trustworthy manner, the percentage of active constituent in his bath.

Colorimetric Determination of Allyl Isothiocyanate

1983 ◽  
Vol 16 (15) ◽  
pp. 1197-1206 ◽  
Author(s):  
Y. M. Chae ◽  
M. A. Tabatabai
Keyword(s):  
Allyl Isothiocyanate ◽  
Colorimetric Determination

scholarly journals Erratum

1969 ◽  
Vol 15 (1) ◽  
pp. 30-30
Keyword(s):  
Ethyl Alcohol ◽  
Potassium Hydroxide ◽  
Sodium Arsenite ◽  
Alcoholic Potassium Hydroxide ◽  
Working Solution

Abstract The article "The Determination of Triglycerides in Plasma and Tissues" by Vishwanath M. Sardesai and Joan A. Manning—Clin.. (Chem. 14, 156 (1968)—contains three errors. On p. 157 under Materials: Reagent 3 should read Alcoholic potassium hydroxide ... with 95% ethyl alcohol. Working solution: dilute 100 ml of stock solution to 50 ml with 95% alcohol on day of use. On p. 157 under Materials: Reagent 6 should read Sodium arsenite, 0.5 M. On p. 158, line 9: ... glycerol released on saponification). After exactly 10 min., the oxidation was stopped by the addition of 0.1 ml sodium arsenite. Several minutes later....

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