Author
Huber. Warner
Bio: Huber. Warner is an academic researcher. The author has contributed to research in topics: Calcium oxalate & Ascorbic acid. The author has an hindex of 2, co-authored 2 publications receiving 7077 citations.
Topics: Calcium oxalate, Ascorbic acid, Phosphorus, Calcium
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7,125 citations
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TL;DR: The phosphomolybdenum method is routinely applied in the laboratory to evaluate the total antioxidant capacity of plant extracts and to determine vitamin E in a variety of grains and seeds, including corn and soybean.
4,644 citations
TL;DR: The method is about seven times as sensitive as the Fiske–SubbaRow procedure and involves less pipetting, but it is not very satisfactory for determining inorganic phosphate if labile phosphate esters are present in large excess.
Abstract: Publisher Summary This chapter discusses the assay of inorganic phosphate, total phosphate, and phosphatases. The phosphomolybdate complex is reduced by ascorbic acid. The method is about seven times as sensitive as the Fiske–SubbaRow procedure and involves less pipetting. One can easily determine 0.01 micromole of phosphate. Pyrophosphate breaks down about 5% in the method and compounds such as glucose 1-phosphate also break down somewhat, so that the method is not very satisfactory for determining inorganic phosphate if labile phosphate esters are present in large excess. The sample of organic phosphate and a drop of magnesium nitrate solution in a small test tube are taken to dryness by shaking the tube in flame. The ashing procedure is rapid and is good for various biological materials and phosphate esters such as nucleic acid, carbohydrate phosphate esters, viruses, and phospholipids. The assay method of phosphatases for inorganic phosphate can be used as an assay for phosphatases hydrolyzing stable phosphate esters such as glucose-6-phosphate, ribose-5-phosphate, and histidinol phosphate. The enzyme incubation can be stopped with the one ascorbic-molybdate solution thus avoiding an extra pipetting.
3,256 citations
TL;DR: The cations of T4 phage have been examined and a balance has been obtained between total cations and total DNA anions and the replacement of the normal polyamines suggested that the polyamines may be acting as nonspecific cations.
2,468 citations
TL;DR: It is shown that minimal levels of serum cholesterol were achieved with oils with an iodine number of about 100, and that more highly unsaturated oils were not more effective, which implies that monounsaturated acids are half as effective as the diene, linoleic acid, the primary polyunsaturated acid in vegetable oils.
1,480 citations
TL;DR: The kinetics and tissue distribution of the microsomal heme oxygenase suggest that it is of major importance in the physiological degradation of hemoglobin and other hemoproteins to bile pigment.
1,315 citations