Gold Nanoparticles successfully applied for detection of Chlorpyrifos pesticide present in various water samples. Structural and morphological studies of Gold Nanoparticles were studied following UV-Visible Spectrophotometer, SEM and HRTEM. Trisodium Citrate has been used as a reducing agent. The author successfully applied Gold Nanoparticles capped with citrate ions for monitoring Chlorpyrifos...

INTRODUCTION In spite of being the fastest acting drug available for the control of an acute gout attack, colchicine is generally considered a last alternative in gout therapy. This is mainly due to the severe adverse effects associated with its administration through the enteral and parenteral routes, as well as its high risk/benefit ratio. The preparation of dosage forms of colchicine that ca...

Introduction In recent years quality requirements, as outlined by ISO 9000, GLP, GMP and NAMAS, have assumed increasing importance and as a consequence, in the pharmaceutical industry, the recommendations of pharmacopeias have also become more influential. Verification of the continued proper performance of UV-visible spectrophotometers is an important element of these quality requirements. Def...

The current study was intended for isolation of bioactive polyphenolic compounds from methanol extract of Justicia Gendarussa and their subsequent characterization. The flavonoid compounds were isolated and identified by using thin layer chromatography (TLC), were qualified by using reverse phase high performance chromatography (RP-HPLC). Their structures and chemical bonds were analyzed using ...

AIMS To develop a non-invasive method to demonstrate the presence of haemoglobin and its degradation products in bruises in live human subjects for the purposes of objectively assisting in the determination of the age of a bruise. METHODS The cuvette holder unit of a Cary 100 Bio UV-Visible Spectrophotometer was replaced with the manufacture's fibre optic cable and optical reflectance probe. ...

To control the severe problem of microbiologically influenced corrosion, industries require highly potent antibacterial agent which can inhibit the growth of bacteria on man-made surfaces. This need drove the research towards the synthesis of nanoscale antimicrobial compounds. We, therefore, screened several bacteria for the biosynthesis of copper/copper compound nanoparticles which could inhib...

The toxicity of organophosphate insecticides for nontarget organism has been the subject of extensive research for sustainable agriculture. Pakistan has banned the use of methyl/ethyl parathions, but they are still illegally used. The present study is an attempt to estimate the residual concentration and to suggest remedial solution of adsorption by different types of soils collected and charac...

In this research we have studied aimed to compare the adsorption of dexamethasone by two adsorbent; multi-wall carbon nanotube and activated carbon with the help of UV/VIS spectrophotometer Jenway 6505 model. Adsorption chart based on the wavelength of dexamethasone has been obtained and the relevant graph is plotted by considering factor of concentration. Four different concentrations necessar...

Diesel is one of the fuels used in automobiles. But diesel is often adulterated with Kerosene which harms the engine and reduces the life of automobiles. An electronic technique has been developed to determine the adulteration in diesel by kerosene, in which the light is passed in an optical fiber, the cladding of which is removed over a small area, where the evanescent wave interacts with the ...

In this paper, we report structural and optical properties of Mn doped ZnS nanoparticles, having average size 2.44–1.60 nm have been synthesized by co-precipitation method using Thioglycolic Acid as external capping agent. Zinc blende crystal structure ZnS:Mn nanoparticles has been confirmed by the X-ray diffraction studies. Absorption spectra have been obtained using UV-Vis spectrophotometer t...