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Showing 1 to 20 of 526 for “"Analytical chemistry"”.
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Micelle Enhanced Analytical Chemistry
The ability of surfactant micellar aggregates to enhance collisional quenching between a model cation analyte, copper (II) ion, and two fluorescent probes, phenosafranin and N-methylacridone (NMA), was studied. The intensity of the fluorescence emission observed from these two probe molecules was …
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The analytical chemistry of copper (III)
… of Agriculture and Applied Science. Dept. of Chemistry, 1954
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The analytical chemistry of agricultural guanidine fungicides
A programme of research on agricultural guanidine fungicides, represented by a complex mixture of several components (guazatine) and by a single compound (dedine[?] ), was carried out. The studies involved the synthesis of several guanidine derivatives and their characterization by spectroscopic …
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Some aspects of the analytical chemistry of malathion
A thorough investigation of the recommended colorimetric method for the determination of malathion (an organophosphorus pesticide) has led to the identification of the major cause of all the problems with which the method suffers. The method, which involves the extraction of the copper (II) complex …
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Microprocessors in Analytical Chemistry: Applications to Analytical Spectrometry
Made available in DSpace on 2014-12-13T20:10:24Z (GMT). No. of bitstreams: 1 7820894.pdf: 12609366 bytes, checksum: 7fb635d68d7fdbf1fd2dd4a1458372d9 (MD5) Previous issue date: 1978
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Applications and developments of chemometric methods for process analytical chemistry
… from the process and taking it to a centralised analytical laboratory. It takes time for the analytical result to be achieved and the result is used retrospectively to determine the yield or quality of a batch, and not to control the process. This leads to batches being produced that do not meet …
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Studies on the analytical chemistry of chromium in aqueous solutions
Quantitative differentiation of the various oxidation states of chromium by coprecipitation and preconcentration of trivalent chromium in aqueous solutions using iron(III) hydroxide as the coprecipitating agent has been studied. Recoveries of trivalent chromium are less than 100% because of …
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Re-evaluation of analytical chemistry techniques in studying DNA structures
This work describes the use of analytical chemistry techniques to examine the structural changes that DNA adopts when subjected to a number of external/internal factors. A self-complementary sequence, d(CG)9, and a non-self-complementary sequence (mixed sequence) were used to study the …
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Development and Application of a Microprocessor-Controlled Multichannel Pipetting System for Clinical/analytical Chemistry
Made available in DSpace on 2014-12-13T20:10:11Z (GMT). No. of bitstreams: 1 7804006.pdf: 6181927 bytes, checksum: d60c2a7581b186b8848cf3cfc5d46960 (MD5) Previous issue date: 1977
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Developments in Analytical Chemistry: Acoustically Levitated Drop Reactors for Enzyme Reaction Kinetics and Single-Walled Carbon Nanotube-Based Sensors for Detection of Toxic Organic Phosphonates
Developments in analytical chemistry were made using acoustically levitated small volumes of liquid to study enzyme reaction kinetics and by detecting volatile organic compounds in the gas phase using single-walled carbon nanotubes. Experience gained in engineering, electronics, automation, and …
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A 120 megacycle self-contained high-frequency titrimeter
<p>The analytical chemist is ever eager to improve and expedite present analytical methods.. In the past ten years considerable interest .has been elicited in the field of high frequency oscillators and their application to analytical chemistry. One of the main reasons for this interest is the …
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Chromatographic Fractionation of the Hydrous Oxide Ions
… and predicted its Usefulness in the field of analytical chemistry.
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A problem driven approach to the miniaturizsation and automation of enzyme-based assays and an investigation of the dissipation of cyanazine and bromide in wetland mesocosms
Analytical chemistry, as a discipline, has something of an identity crisis. Its role in the development of instrumental methods frequently relegates it into the category of a technology, while the curiosity-driven fundamental studies of the technology drive it into the category of a science. …
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The microwave digestion of solids
… have arisen particularly in the field of analytical chemistry. Most routine analysis of biological and chemical samples by atomic absorption spectroscopy (AAS) and inductively coupled plasma atomic emission spectroscopy (ICP-AES) involves the time consuming operation of digesting the …
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The Formal Redox Potential of the Permanganatemanganous System in Sulfuric Acid
… to be used—those and many other problems in analytical chemistry can be calculated or predicted satisfactorily through a knowledge of the formal potential of many conjugate redox pairs. One of the most important conjugate pairs is the permanganate-manganous system in acid solution. |A search …
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Therapeutics discovery via glycotechnology : the development of protein engineered enzymes for the study of galactosaminoglycan neuromedicine
… of glycan species using coupled bioinformatics/analytical chemistry techniques centered on mass spectrometry, nuclear magnetic resonance, and capillary electrophoresis.
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