|别名||磷酸二氢铵 ;一盐基磷酸铵,磷酸一铵;Ammonium dihydrogenphosphate Mono-ammonium phosphate prim-Ammonium phosphate Ammonium biphosphate Primary ammonium phosphate Ammonium acid phosphate|
|个人防护设备||Eyeshields,Gloves,type N95 (US),type P1 (EN143) respirator filter|
Nanocrystalline calcium phosphate apatites constitute the mineral part of hard tissues, and the synthesis of biomimetic analogs is now well-mastered at the lab-scale. Recent advances in the fine physi...Read More
Rapid determination of thiamine, riboflavin, niacinamide, pantothenic acid, pyridoxine, folic acid and ascorbic acid in Vitamins with Minerals Tablets by high-performance liquid chromatography with diode array detector.
A simple, isocratic, and stability-indicating high-performance liquid chromatography (HPLC) method has been developed for the rapid determination of thiamine (VB(1)), niacinamide (VB(3)), pyridoxine (...Read More
Characterization of enhanced-fluidity liquid hydrophilic interaction chromatography for the separation of nucleosides and nucleotides.
Hydrophilic interaction chromatography (HILIC) is a liquid chromatographic separation mechanism commonly used for polar biological molecules. The use of enhanced-fluidity liquid chromatography (EFLC) ...Read More
Improved Candida methylica formate dehydrogenase fermentation through statistical optimization of low-cost culture media.
NAD?-dependent formate dehydrogenase (FDH, EC 22.214.171.124) is of use in the regeneration of NAD(P)H coenzymes, and therefore has strong potential for practical application in chemical and medical industri...Read More
Optimization and Validation of a Procedure for the Determination of Total Chromium in Postmortem Material by ETAAS.
A study was conducted to optimize and validate a procedure for the determination of total chromium in wet digested samples of human blood and body tissues for forensic toxicological purposes. Five exp...Read More
Laboratory investigations of the effects of nitrification-induced acidification on Cr cycling in vadose zone material partially derived from ultramafic rocks.
Sacramento Valley (California, USA) soils and sediments have high concentrations of Cr(III) because they are partially derived from ultramafic material. Some Cr(III) is oxidized to more toxic and mobi...Read More
Improvement to the marginal coping fit of commercially pure titanium cast in phosphate-bonded investment by using a simple pattern coating technique.
Coatings of zirconite, Y(2)O(3) or ZrO(2) on wax patterns before investing in phosphate-bonded investments have been recommended to reduce the reaction layer in titanium castings, but they are not eas...Read More
Nitrogen requirements of commercial wine yeast strains during fermentation of a synthetic grape must.
Nitrogen deficiencies in grape musts are one of the main causes of stuck or sluggish wine fermentations. Currently, the most common method for dealing with nitrogen-deficient fermentations is adding s...Read More
Struvite crystallization versus amorphous magnesium and calcium phosphate precipitation during the treatment of a saline industrial wastewater.
Struvite crystallization (MgNH(4)PO(4)·6H(2)O, MAP) could be an alternative for the sustainable and economical recovery of phosphorus from concentrated wastewater streams. Struvite precipitation is r...Read More
Comparative study on two commercial strains of Saccharomyces cerevisiae for optimum ethanol production on industrial scale.
Two commercial strains of Saccharomyces cerevisiae, Saf-Instant (Baker's yeast) and Ethanol red (Mutant) were compared for ethanol production during hot summer season, using molasses diluted up t...Read More
Mycorrhizal colonization and grain Cd concentration of field-grown durum wheat in response to tillage, preceding crop and phosphorus fertilization.
A 3-year field trial was conducted to investigate the effect of agricultural management practices including tillage, preceding crop and phosphate fertilization on root colonization by arbuscular mycor...Read More
The nitrogen source impacts major volatile compounds released by Saccharomyces cerevisiae during alcoholic fermentation.
Sulphur-containing amino acids, cysteine and methionine, are generally found in very low concentrations in grape-juice. The objective of this study was to identify the effects of methionine on aroma c...Read More
Tryptophanase, L-tryptophan indole-lyase with extremely absolute stereospecificity, can change the stereospecificity in concentrated diammonium hydrogenphosphate solution. While tryptophanase is not i...Read More
Preparation and characterization of activated carbon produced from rice straw by (NH"4)"2HPO"4 activation
Effects of different pretreatment protocols in (NH"4)"2HPO"4 activation of rice straw on porous activated carbon evolution were evaluated. The pore structure, morphology and surface che...Read More
Role of carboxylate chelating agents on the chemical, structural and textural properties of hydroxyapatite.
Organically-modified hydroxyapatite materials were synthesized through the addition of oxalic, succinic, adipic and citric acids to a calcium hydroxide solution before neutralization by ammonium dihyd...Read More
Occupational exposures in two industrial plants devoted to the production of ammonium phosphate fertilisers.
In order to fill a gap in the open literature, occupational exposures and activity concentrations have been assessed in two NORM industrial plants, located in the south-west of Spain, devoted to the p...Read More
A simple high-performance liquid chromatographic method has been developed for determining N1-alkylnicotinamides, including C1-C5 alkyl derivatives, in urine. N1-Alkylnicotinamides were reacted with a...Read More
Development and validation of an LC assay for sumatriptan succinate residues on surfaces in the manufacture of pharmaceuticals.
A high performance liquid chromatographic (HPLC) method for the assay of sumatriptan succinate residues in swabs collected from manufacturing equipment surfaces was developed and validated in order to...Read More
Improved enrichment strategies for phosphorylated peptides on titanium dioxide using methyl esterification and pH gradient elution.
Improvements to phosphopeptide enrichment protocols employing titanium dioxide (TiO2) are described and applied to identification of phosphorylation sites on recombinant human cyclin-dependent kinase ...Read More
Phanerochaete chrysosporium IBL-03 secretes high titers of manganese peroxidase during decolorization of Drimarine Blue K2RL textile dye.
A novel indigenous strain, Phanerochaete chrysosporium IBL-03, with high manganese peroxidase (MnP) activities was used for decolorization of a reactive textile dye, Drimarine Blue K2R, which is used ...Read More
A comparative study of the most effective amendment for Pb, Zn and Cd immobilization in contaminated soils.
The problem of an extensive contamination of soils with metals can be resolved using an in situ chemical immobilization technology. Five substances (natural zeolite, bog iron ore, "Polifoska 15...Read More
Two ammonia compounds, diammonium phosphate and ammonium hydroxide, are typically used in the processing or flavoring of tobacco used in the manufacture of cigarettes.A battery of tests was used to co...Read More
Acute phosphate toxicity following rectal administration of phosphate-containing preparations was documented earlier. However, acute phosphate toxicity due to inhalation of monoammonium phosphate (MAP...Read More
Effects of nitrogen catabolite repression and di-ammonium phosphate addition during wine fermentation by a commercial strain of S. cerevisiae.
Two deletion mutants expected to be defective in nitrogen catabolite repression (NCR) were constructed in a commercial wine yeast background M2: a ure2 mutant and a dal80 gzf3 double mutant. Wild-type...Read More
Identification of Fe-polycarboxylic complexes by electrospray ionization mass spectrometry and reduction of interferences by ion chromatography/inductively coupled plasma mass spectrometry with an octopole reaction system.
Stable complexes are required during the ion chromatographic (IC) separation of Fe-polycarboxylic acid complexes. Electrospray ionization mass spectrometry (ESI-MS) was used to identify 1:1 stoichiome...Read More
Occurrence of hydrogen sulfide in wine and in fermentation: influence of yeast strain and supplementation of yeast available nitrogen.
Hydrogen sulfide (H?S) is a powerful aroma compound largely produced by yeast during fermentation. Its occurrence in wines and other fermented beverages has been associated with off-odors described as...Read More