نتایج جستجو برای: uv detection
تعداد نتایج: 631153 فیلتر نتایج به سال:
A rapid, simple and sensitive high-performance liquid chromatography method was developed for determination of ciprofloxacin in plasma by means of ultraviolet detection. Ofloxacin was used as an internal standard and separation carried on a Novapak C18 column using a mobile phase of 0.01 M phosphate buffer (pH =2.6): methanol (82:18 v/v). Extraction of drug was performed from plasma by liquid-l...
A simple stability-indicating RP-HPLC method has been developed and validated for the determination of Racecadotril (RAC) in pharmaceutical dosage forms. The mobile phase consisting of methanol and tetra butyl ammonium hydrogen sulphate (80: 20, v/v) was used using isocratic elution with UV detection at 230 nm. The method showed good linearity for RAC in the 5-120 μg/mL range being the square o...
Nicotine and cotinine in hair are good biomarkers for assessing long-term exposure to smoking. However, analytical devices such as GC/MS are associated with high cost and are not widely used. HPLC/UV is used widely in laboratories, but is unsuitable for measurement of minor constituents, except when using the column-switching method. Thus, we aimed to establish a simple, inexpensive and sensiti...
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