Determination of nitrite and nitrate in some horticultural and meat products and in samples of soil
β Scribed by A. Adriaanse; J. E. Robbers
- Publisher
- John Wiley and Sons
- Year
- 1969
- Tongue
- English
- Weight
- 368 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0022-5142
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A direct spectrophotometric method for the simultaneous determination of nitrate and nitrite by column preconcentration has been developed. Nitrate is reduced to nitrite in a copper-coated cadmium column which is then treated with azo dye reagent by column preconcentration, and the absorbance due to
cGMP) which promotes vascular smooth muscle relax-An automated method for the simultaneous determiation. ## nation of nitrite and nitrate in biological samples by Many investigators have used L-arginine analogs for using a multichannel flow injection analyzer has been competitive inhibition of NO
Chloride analysis was quite easy and salt contents of all butter and margarine samples were found to be less than 2 g NaCl/kg while those of cheese and meat products were above 10 g/kg. Nitrate analysis was not as easy as chloride analysis due to interferences of chloride and organic ions. These int
Contents of nitrate and nitrite in several sources of domestic water supply, 8 branded lager beers, and only nitrate in palmwine is reported. Nitrate in water supplies varied from 0.23 mg/l in tap water to 50.0 mg/l in reservoir/stored water, and nitrite from 0.02 mg/l in stream water to 8.94 mg/l i