A comparative study for estimation of Losartan Potassium drug by atomic absorption technique and UV-visible spectrophotometry

Comparative Study of Estimation of Fexofenadine Hydrochloride By Uv-Visible Spectrophotometry and Hplc Method G.R.Barabde

Simple and accurate spectrophotometric and HPLC method was developed for determination of Fexofenadine in tablets dosage form. The spectrophotometric method was developed by dissolving tablets in 1:1 Methanol to make solution of 10ppm giving absorbance at 220nm. The experimental conditions were optimized and Beers law was obeyed over the applicable concentration range. The application of HPLC p...

Gas-sampling technique for arsenic determination by atomic absorption spectrophotometry.

IN CONVENTIONAL atomic absorption spectrophotometry a solution of the sample is introduced into the flame as an aerosol by means of a nebulizer. However, commercial nebulizers are only about 5 efficient in forming fine droplets suitable for atomization by the flame ( I ) . Furthermore, a solution aspirated at a usual rate of 3-5 ml/min for about 10 sec produces a concentration signal extending ...

Basic UV/Visible Spectrophotometry

A continuous-dilution calibration technique for flame atomic-absorption spectrophotometry.

Calibration in atomic-absorption spectrometry is achieved by means of a concentrationgradient chamber using a single concentrated standard solution. Calibration is rapid and extends over the entire working concentration range of the analyte, irrespective of the shape of the conventionally obtained calibration curve. No curve-fitting approximations are involved. With well-designed apparatus, dev...

‏‎a comparative study of language learning strategies employmed by bilinguals and monolinguals with reference to attitudes and motivation‎‏

هدف از این تحقیق بررسی برخی عوامل ادراکی واحساسی یعنی استفاده از شیوه های یادگیری زبان ، انگیزه ها ونگرش نسبت به زبان انگلیسی در رابطه با زمینه زبانی زبان آموزان می باشد. هدف بررسی این نکته بود که آیا اختلافی چشمگیر میان زبان آموزان دو زبانه و تک زبانه در میزان استفاده از شیوه های یادگیری زبان ، انگیزه ها نگرش و سطح مهارت زبانی وجود دارد. همچنین سعی شد تا بهترین و موثرترین عوامل پیش بینی کننده ...