Micro determination

Saifer, A. and Perle, G. Photometric micro determination of serum lipase with a phenyl laurate substrate. [Pg.224]

Martin AJP, Synge RLM. A new form of chromatogram employing two liquid phases A theory of chromatography. 2. Application to the micro-determination of the higher monoamino-acids in proteins. Biochem. J. 1941 35 1358-1368. [Pg.34]

Allen, R. J. L. (1940). Micro-determination of phosphorus. (Colorimetric estimation molybdate blue.) Biochem. J. 34, 858. Bellamy, L. J. (1954). Infra-red Spectra of Complex Molecules. Methuen and Co. [Pg.231]

By the late 1920s quantitative micro-determination of oxygen uptake had been developed in Warburg s laboratory in Berlin based on a manometric technique introduced by Barcroft and Haldane (1902). With this equipment evolution of carbon dioxide or uptake of oxygen could be monitored Carbon dioxide produced in respiration was absorbed by potassium hydroxide. If bicarbonate buffer was used, acid production caused carbon dioxide to be released. Krebs and others from... [Pg.69]

HunterG. 1955. Micro-determination of bromide in body fluids. Biochem J 60 261-264. [Pg.99]

Moser and Brukl described a method for the gravimetric determination of phosphine. Dumas used gas chromatography for the micro-determination of phosphine in the air (0.005-0.5 mg/litre), see also An automatic gas analyser, for the determination of phosphine and other substances in gases, works on the principle of the light absorption in reflection through a paper band, on which the gas causes a colour reaction with suitable reagents... [Pg.17]

Klee, R. (1984). Micro-determinism and concepts of emergence. Phil. ScL, 51, 44-63. [Pg.283]

Kankakee Ordnance Works, Joliet, Illinois 0953) 12)A.Lamouroux,MP 37,439—50 (1955) (Colorimetric micro-determination of ammonia, utilizing the intense blue coloration produced on treatment of its aq soln with phenol and hypochlorite) 13) A.M.P.TansjChemEduc 62,218(1955)... [Pg.305]

Duncombe, W. G. 1963. The colorimetric micro-determination of long-chain fatty acids. Biochem. J. 88, 7-10. [Pg.265]

This method for determining arsenic is particularly useful in biological and toxicological studies.8 The material under test is oxidised with a mixture of sulphuric and nitric acids and perhydrol, the arsenic is precipitated as sulphide, which is then oxidised and the arsenic determined colorimetrically after addition of sodium molybdate and stannous chloride. The formation of the molybdenum blue compound is also applied to the micro-determination of arsenic in soil extracts.9... [Pg.321]

Wager, H.G. 1954. An improved copper reduction method for the micro-determination of reducing sugars. Analyst 79 34-41. [Pg.660]

A wad, W. I., Y. A. Gawargious, and S. S. M. Hassan Further Studies on the Use of the Oxygen Flask for the Micro-determination of Chlorine or Bromine in some Highly-Halogenated Organic Compounds. Mikrochim. Acta 1967, 852. [Pg.91]

B) Corner, M. Rapid Micro-Determination of Organically Bound Halogens, Arsenic, Phosphorus and Boron. Analyst 84, 41 (1959). [Pg.91]

For the preparation of derivatives on a micro scale (at the microgram and picogram levels) reaction with methyl iodide was recommended [510] 100—200 /il of an acetone solution of barbituric acids was mixed with a 3- to 1000-fold molar excess of methyl iodide and refluxed with 3—5 mg of potassium carbonate. After about 30 min, 0.2 /A of the supernatant was injected directly into a column with 3% of OV-225, with temperature programming at 8°C/min from 100 to 240°C. The advantage of the method is that no toxic and hazardous chemicals are used. The method was further modified for the micro-determination of barbiturates in blood [511]. Only 20-25 /d of blood were necessary for the determination, and with the use of a detector sensitive to nitrogen down to 1 ng of barbiturate could be determined in this sample. The derivatization reaction was performed in a micro-refluxer (see Fig. 2.6). [Pg.183]

Plesner, Paul, and Kalckar, Herman M., Enzymic Micro Determinations of Uric Acid, Hypoxanthine, Xanthine, Adenine, and Xanthopterine by... [Pg.244]

Adenine, Enzymic Micro Determination, by Ultraviolet Spectrophotometry... [Pg.249]

Spectrophotometry, Ultraviolet Enzymic Micro Determination of Uric Acid, Hypoxanthine,... [Pg.259]

Ultraviolet Spectrophotometry, Enzyme Micro Determinations of Uric Acid,... [Pg.260]

Sano, T, Nohara, K., Shiraishi, E, and Kaya, K. 1992. A method for micro-determination of total microcystin content in waterblooms of cyanobacteria (blue-green algae). International Journal of Environmental Analytical Chemistry 49 163-170. [Pg.272]

F. H. Oliver The Direct Micro-determination of Oxygen, in Compre-... [Pg.217]

Araki, S., Suzuki, S., Hobo, T., Yamada, M. Automated ion-exchange chromatography for the ultra-micro determination of alkali and alkaline-earth metals. Use of a double-jet hydrogen flame ionisation detector. Bunseki Kagaku 19, 493 (1970) AnaL Abstr. 21, 3235 (1971)... [Pg.201]

Handa, A. C., Johri, K. N. Micro determination of sulfide, sulfite, sulfate and thiosulfate by thin-layer chromatography and ring-colorimetry. Talanta 20, 219 (1973)... [Pg.207]

Micro determination of the boiling point of an unknown substance. It is advisable to become familiar with the technic by first determining the boiling point of a known substance which can be obtained in a state of high purity. The following compounds are suggested benzene, chlorobenzene, and aniline. Select one of the procedures and determine the boiling point of the known substance until you have obtained a satisfactory value. [Pg.81]

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