Quinine bisulfate

Quinine bisulfate [6183-68-2 (7H20) 549-56-4 (anhydr)] M 422.4, m 160 (anhydrous). Crystd from O.IM H2SO4, forms heptahydrate when crystd from water... [Pg.347]

Values relative to quinine bisulfate (0.55 after 21). It should be mentioned that even small changes in reaction conditions (e.g. change of pn) give rise to changes in CL-... [Pg.94]

Methods. Absorption spectra were recorded using an Hitachi model 150-20 spectrophotometer/data processor system. Uncorrected steady-state fluorescence emission spectra were recorded using a Perkin-Elmer MPF-44A spectrofluorimeter. These spectra were collected and stored using a dedicated microcomputer and then transferred to a VAX 11/780 computer for analysis. Fluorescence spectra were corrected subsequently for the response characteristics of the detector (21). Values of the fluorescence quantum yield, <) , were determined relative to either quinine bisulfate in IN H2S04 )>f =... [Pg.61]

If one of the substances has a known fluorescence efficiency, the value of the other is then simply obtained. Convenient standard solutions are rhodamine B in ethanol with fluorescence in the yellow and efficiency 0.69, quinine bisulfate in 0.1 N sulfuric acid with fluorescence in the blue and efficiency 0.55. anthracene in ethanol with fluorescence in the violet and efficiency 0.27 in the ultraviolet region, naphthalene ( = 0.19), phenol (0 = 0.19), or benzene (0 = 0.042) can be used. With the last four compounds the solution must be deaerated by passing a current of nitrogen before measurement. To minimize the effect of errors in the spectral sensitivity curve it is desirable to use as the standard a solution... [Pg.324]

SYNS QUININE BISULFATE QUININE HYDROGEN SULFATE... [Pg.1202]

Synonyms Quinine sulfate (preferred name) Chininum Quinina Quinine bisulfate Chinine Cinchonan-9-ol, 6 -methoxy- (8a,9r), chinin 6 -Methoxycinchonan-9-ol 6-Methoxy cinchonine a-(6-Methoxy-4-quinolyl)-5-vinyl-2-quinuclidine-methanol a-(6-Methoxy-4-quinoyl)-5-vinyl-2-quinclidinemethanol 6-Methoxy-a-(5-vinyl-2-quinuclidinyl)-4-quinolinemethanol 2-Quinucli-dinemethanol a-(6-Methoxy-4-quinolyl)-5-vinyl Chemical/Pharmaceutical/Other Class Antima-larial... [Pg.2178]

Fluorescence measurements were performed with an SLM 8000 fluorometer. Quantum yields were obtained with quinine bisulfate as the standard (14,15). Excitation was at 272-280 nm, and the range of the integration used in the determination of 1/1(0) was 285-420 nm. Circular dichroism measurements were performed with a Jasco J-500C spectropolarimeter. [Pg.163]

Steady-state fluorescence spectra were recorded ( ex = 347 nm) on a Perkin-Elmer model 650-10S fluorescence spectrometer. The absorbance of pyrene (10" M) in each solution was between 0.01 and 0.05 at the excitation wavelength. Fluorescence quantum yields were obtained by comparison with a quinine bisulfate... [Pg.440]

Kuebler and Bailar studied the resolution on quartz powder (140-200 mesh) of the racemic complex potassium dinitro(A-methyl-iV-ethylgly-cinate)platinum. Resolution proved to be somewhat better than on crystals of quinine bisulfate. For example, a solution of the complex was shaken with quartz powder and after filtration was examined polarimetrically. Typically, optical rotations diminished with time and in 5-7 hrs fell to zero. On /-quartz rotations were +0.028°, and on r/-quartz -0.024 °. [Pg.10]

SOA 390. prepared by the addWon of one gallon bay oil N.F. and either SO avdp ounces of quinine sulfate, U.S.P., 50 avdp ounces of quinine bisulfate,... [Pg.274]

Quinine bisulfate. See Quinine sulfate Quinine chloride. See Quinine hydrochloride Quinine dichloride. See Quinine dihydrochloride Quinine dihydrochloride CAS 60-93-5... [Pg.3812]

Synonyms Quinine bisulfate Quinine hydrogen sulfate... [Pg.3812]

Quinine sulfate. See Quinine bisulfate Quinine sulfate dihydrate CAS 6119-70-6 EINECS/ELINCS 212-359-2 UN 2811 FEMA 2977... [Pg.3813]

Classification Specially denatured alcohol Dehnition Ethyl alcohol (100 gal) denatured with t-butyl alcohol (1/8 gal) and 60 oz of one of the following quinine NF, quinine bisulfate NF, quinine dihydrochloride NF, cinchonidine, or cinchonidine sulfate NF or their salts... [Pg.3888]

Hydroxy-3,5-di-t-butylphenyl) benzotri azole Octrizole C20H26N2O6S Quinine bisulfate C20H26N4O2 Hexamidine C20H26N4O6S2 Basic blue 41 C20H26O2... [Pg.7106]

Rusakowi R, Testa AC (1968) Comparison of quinine bisulfate and 9,10-diphenylanthracene as fluorescence standards. J Phys Chem 72 793-796... [Pg.581]

Figure 3.1. EEMs for quinine bisulfate (left) and Columbia River water (right) shown in contour (top) and three-dimensional views (bottom).

Flnorescence spectroscopy, although not a new teclmique, is stiU, compared to other analytical methods, relatively immature in terms of standardization of measurement. As mentioned in Chapter 1, the birth of fluorescence spectroscopy was marked by the work of Sir George Gabriel Stokes, who in 1852 reported his studies on quinine bisulfate using what today would be considered a filter fluorimeter arrangement, as shown in Figure 5.1. [Pg.147]

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