نتایج جستجو برای: phenolphthalein
تعداد نتایج: 300 فیلتر نتایج به سال:
MicrosoftInternetExplorer4 Background and Objectives: The presence of chemical dyes in the water resources not only pollutes them, but also brings about death of organisms and serious indemnities to the environment through stopping oxygen production and preventing penetration of the sunlight. In this study, we investigated the efficiency of the electrolysis process for decolonization of ph...
This research is useful in forensic laboratories to prevent contamination. If a cleaner was found remove all traces of blood, it could be used sterilize lab benches and equipment ensure no cross contamination between pieces evidence. It also the field determine which presumptive test would more different scenarios. The purpose this project if common household cleaners efficiently presence blood...
objective: in recent years the use of herbal slimming supplements has increased in iran. one problem may be the illegal inclusion of synthetic drugs by some manufacturers in these products. the aim of this study is to determine four undeclared synthetic adulterants in some herbal slimming products present in the iranian market. methods: this survey studyresearched six common herbal slimming sup...
Serum containing normal and abnormal levels of alkaline phosphatase activity were assayed for total enzyme activity, then fractionated by electrophoresis on cellulose acetate membranes for 20 mm. The new substrate, phenolphthalein monophosphate, was employed to locate the isoenzymes on the cellulose acetate membranes and to measure their activity by eluting and scanning procedures. The sensitiv...
A new substrate, ammonium thymolphthalein monophosphate, is proposed for use in alkaline and acid phosphatase determinations. The ammonium salt shares the advantages of the sodium salt, but is a more stable substrate and results in more stable working reagents. The substrate is buffered at ph 10.1 in diethanolamine for determining alkaline phosphatase activity in 5 mm, and at pH 5.9 in citrate ...
a drop or two to the acid solution to be determined turns permanently red when the sodium hydrate solution is added to beyond the neutral point. It is a very delicate test and a very simple one to apply. A glass tube is used having 5 cc. marked on the bottom and, above whictTit is marked in centimetres and again in tenths of centimetres. The urine to be examined is added up to the 5 cm. marked,...
A rapid and precise procedure for serum alkaline phosphatase employs phenolphthalein monophosphate as the substrate. This compound is readily hydrolyzed and directly provides a chromogen for colorimetric determination. The color produced is linear with respect to both enzyme concentration and incubation time and is stable. Reagent and serum blanks are negligible. Various factors which affect al...
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