Results 261 to 270 of about 1,703,225 (294)

Spectrophotometric determination of formaldehyde in air

Talanta, 1983
A spectrophotometric method for the determination of formaldehyde in air is described, based on the colour reaction of formaldehyde, p-aminoazobenzene and sulphur dioxide in hydrochloric acid medium. Beer's law is obeyed at 505 nm in the range 2-12 mug of formaldehyde per 25ml of final solution (0.08-0.48 ppm). Optimum conditions for colour development,
P, Verma, V K, Gupta
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Spectrophotometric determination of pyrrole derivatives

Talanta, 1976
A simple, reliable and rapid method for the spectrophotometric determination of some pyrrole derivatives with concentrated sulphuric acid has been developed. The results show a maximum deviation of about 0.2 mug.
J P, Sharma, V K, Shukla, A K, Dubey
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Spectrophotometric determination of maprotiline hydrochloride

The Analyst, 1988
A simple and sensitive spectrophotometric method has been developed for the assay of maprotiline hydrochloride. The method is based on the formation of a complex between the drug and p-chloranil at 60 °C in dioxane, using a three-fold molar excess of the reagent; complex formation is complete in less than 30 min. The complex shows maximum absorbance at
L, Ersoy, B, Alpertunga
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Spectrophotometric determination of methisazone

The Analyst, 1977
M B, Devani, C J, Shishoo, H J, Mody
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Spectrophotometric determination of hydroflumethiazide

Journal of Pharmaceutical and Biomedical Analysis, 1989
Y K, Agrawal, R, Giridhar, S K, Menon
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Spectrophotometric determination of cysteine

Analytical Chemistry, 1968
T J, Bydalek, J E, Poldoski
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The Spectrophotometric Determination of Uroporphyrin

Scandinavian Journal of Clinical and Laboratory Investigation, 1950
C, RIMINGTON, S L, SVEINSSON
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Flame spectrophotometric determination of phosphorus

Analytical Chemistry, 1967
R K, Skogerboe, A S, Gravatt, G H, Morrison   +2 more
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Spectrophotometric Determinations of Esterases

Science, 1951
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Spectrophotometric determination of pKa of nimesulide

International Journal of Pharmaceutics, 1999
Saranjit Singh
exaly