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1.
Collaborative study of a column chromatographic method for bendroflumethizide and cyclothiazide.
Fazzari, F R.
J Assoc Off Anal Chem ; 59(1): 90-2, 1976 Jan.
Article in English | MEDLINE | ID: mdl-1249046

ABSTRACT

Bendroflumethiazide and cyclothiazide are eluted from a sodium carbonate column with chloroform-acetic acid (98+2) and are measured directly by ultraviolet spectrophotometry. The method was collaboratively studied by 8 analysts. The average per cent recovery and standard deviations for simulated mixes of bendroflumethiazide and cyclothiazide were 99.61+/-0.78 and 99.3+/-1.97. The method has been adopted as official first action for the determination of bendroflumethiazide.


Subject(s)
Bendroflumethiazide/analysis , Chromatography/methods , Sodium Chloride Symporter Inhibitors/analysis , Benzothiadiazines , Diuretics , Drug Combinations , Norbornanes/analysis , Solvents , Spectrophotometry, Ultraviolet , Tablets/analysis
2.
Determination of drugs in dosage forms by difference spectrophotometry.
Doyle, T D; Fazzari, F R.
J Pharm Sci ; 63(12): 1921-6, 1974 Dec.
Article in English | MEDLINE | ID: mdl-4449023

Subject(s)
Dosage Forms , Pharmaceutical Preparations/analysis , Alkalies , Hydrogen-Ion Concentration , Hydrolysis , Methapyrilene/analysis , Pyridostigmine Bromide/analysis , Pyridoxine/analysis , Schiff Bases , Spectrophotometry, Ultraviolet/methods , Sulfathiazoles/analysis , Thiazines/analysis
3.
Collaborative study of a column chromatographic method for the determination of polythiazide in the presence of vanillin.
Fazzari, F R; Levine, J.
J Assoc Off Anal Chem ; 57(3): 716-8, 1974 May.
Article in English | MEDLINE | ID: mdl-4833413

Subject(s)
Chromatography , Flavoring Agents , Polythiazide/analysis , Chemical Phenomena , Chemistry , Methods , Polythiazide/standards , Schiff Bases , Solvents , Spectrophotometry, Ultraviolet , Tablets/standards
4.
Collaborative study of a column chromatographic method for chlorothiazide, methyclothiazide, and polythiazide.
Fazzari, F R.
J Assoc Off Anal Chem ; 56(3): 677-80, 1973 May.
Article in English | MEDLINE | ID: mdl-4779906

Subject(s)
Chlorothiazide/analysis , Acetates , Chlorothiazide/standards , Chromatography, Thin Layer , Drug Stability , Ethers , Hydrogen-Ion Concentration , Methylation , Spectrum Analysis
5.
Collaborative study of assay for benzthiazide and hydrochlorothiazide in pharmaceuticals.
Fazzari, F R.
J Assoc Off Anal Chem ; 55(1): 161-2, 1972 Jan.
Article in English | MEDLINE | ID: mdl-4666837

Subject(s)
Benzothiadiazines/analysis , Hydrochlorothiazide/analysis , Sulfonamides/analysis , Chromatography , Evaluation Studies as Topic , Hydroflumethiazide/analysis , Methods , Quality Control , Spectrophotometry, Ultraviolet
6.
Polarographic determination of oxazepam.
Fazzari, F R; Riggleman, O H.
J Pharm Sci ; 58(12): 1530-1, 1969 Dec.
Article in English | MEDLINE | ID: mdl-5353275

Subject(s)
Oxazepam/analysis , Capsules , Polarography
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