Direct spectrophotometric method of nitrogen determination.
نویسندگان
چکیده
منابع مشابه
Kinetic Spectrophotometric Method for Determination of S032- Using Methylen blue
The present work reports a kinetic spectrophotometric method for the determination of traceamounts of sulphite that is based on inhibitory effect of sulphite on the oxidation of Methyleneblue (MB) in acidic media. The reaction is followed spectrophotometrically by monitoring thedecrease in absorbance of MB at 664 nm with a fixed time of 0.5-4.5 minutes. It was found thatsulphite exert a strong ...
متن کاملDerivative Spectrophotometric Method for Determination of Losartan in Pharmaceutical Formulations
Losartan, a highly effective blood pressure lowering agent, has been widely used for the treatment of hypertension. A fast and reliable method for the determination of losartan was highly desirable to support formulation screening and quality control. A first derivative UV spectroscopic method was developed for determination of losartan in the tablet dosage form. The first derivative spectrum r...
متن کاملA Spectrophotometric Method for Diosmin Determination
A rapid and sensitive spectrophotometric method for the determination of diosmin (D) has been developed. The method is based on the reaction of D with 4-aminoantipyrine (AAP) in the presence of hexacyanoferrate (III) (HCF) in an alkaline medium and subsequent formation of a purple coloured product having max at 524.5 nm. The conditions affecting the reaction (reagents concentration, pH, order o...
متن کاملDirect and Derivative Spectrophotometric Determination of Ruthenium(III)
A spectrophotometric method has been developed for the determination of ruthenium (Ru) (III) in an aqueous dimethyl formamide using 2-hydroxy-3-methoxy benzaldehyde thiosemicarbazone (HMBATC) as a chromophoric reagent. The metal ion reacts with HMBATC forming a dark brown colored water soluble complex in the acidic medium. The Ru-HMBATSC complex shows the absorption maximum at 375 nm. However, ...
متن کاملDirect Spectrophotometric Determination of Albumin in Human Serum.
In a convenient and direct method for determination of albumin in human serum, based on the decrease in absorbance of a neutral buffered solution of bromcresol green when albumin combines with the indicator, serum is diluted with a solution of bromcresol green of sufficient concentration to allow essentially linear change of absorbance with albumin concentration. Measurements are made at 615 mi...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Kvasny Prumysl
سال: 1970
ISSN: 0023-5830
DOI: 10.18832/kp1970017