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Murthy, Y. L. N.
- Assessment of Physicochemical Characteristics of Liquid Effluent from Agro Oil Industry and its Applications
Authors
1 Department of Chemistry, Pithapur Rajah's Government College (Autonomous), Kakinada-533 001, A.P., IN
2 Department of Chemistry, Aditya P.G. College, Kakinada-533 003, A.P, IN
3 Department of Chemistry, Andhra University, Visakhapatnam-530 003, A.P., IN
Source
Nature Environment and Pollution Technology, Vol 7, No 4 (2008), Pagination: 737-741Abstract
The liquid effluent treated from agro oil industry has an alkaline pH and lower level of dissolved oxygen (DO), which affects the aerobic respiration of organisms, and hence, not suitable for aquaculture application. Higher values of residual sodium carbonate (RSC), electrical conductivity, sulphate and total dissolved solids also suggest that the liquid effluent after treatment is also not suitable for irrigation purposes.Keywords
Agro Oil Industry Effluent, RSC, Wastewater Irrigation, Aquaculture.Full Text
- Selective Characterization and Impact Analysis of Liquid Paper Industry Effluent
Authors
1 Department of Chemistry, P. R. Government College, Kakinada-533 001, A.P., IN
2 Department of Chemistry, Andhra University, Visakhapatnam-530 003, A.P., IN
3 Department of Chemistry, Aditya P.G. College, Kakinada-533 003, A.P., IN
Source
Nature Environment and Pollution Technology, Vol 7, No 3 (2008), Pagination: 483-487Abstract
The treated effluent water from paper industry has an alkaline pH, dissolved oxygen (DO) and biochemical oxygen demand (BOD) and the observed values indicate that, it affects the aerobic respiration of organisms and hence not suitable for aqua-culture application. Residual sodium carbonate (RSC) values observed for the treated liquid effluent sample suggest its suitability for irrigation purposes.Keywords
Paper Industry Effluent, Irrigation Standards, Aquaculture Standards, Residual Sodium Carbonate, Water Classification.Full Text
- Role of Nano-Science and Technology for Environmental Protection
Authors
1 Department of Chemistry, Govt. Degree College for Women, Srikakulam-532 001, A.P., IN
2 Department of Organic Chemistry, Andhra University, Visakhapatnam-530 003, A.P., IN
Source
Nature Environment and Pollution Technology, Vol 6, No 4 (2007), Pagination: 665-672Abstract
The first part of the paper deals with construction of nano materials. People are interested in nano scale of less than 100 nm size because in this size properties of materials are very different than that of larger size of the same material. It is due to the larger surface area and quantum effects such as electrical and magnetic properties. Nano materials are constructed by "top down" or "bottom up" process. Nano-science and technology have brought revolution in several areas such as information, medicine, health, biology, environmental protection, agriculture and in other disciplines.
Second part of the paper deals that how nano-science and technology help in prevention of air, water, soil and ground water pollution. Particles in nano size act as antibacterial, antifouling and antidust catching nature. It also involves in increasing the oxygen content in atmosphere by decomposing water in presence of nano wires of titanium dioxide and ultra violet light which is analogous to photosynthesis. It can also help in self cleaning of porcelain tiles and making stain proof films etc. Nano-technology is applied to purify water from E. coli bacteria and green algae by nano titanium dioxide coated porcelain beads. Some nano particles react with pollutants in soil to transform them into harmless compounds and also act as herbicides.
Full Text
- Quantitative Determination of Solanesol in Tobacco by Liquid Chromatography–Mass Spectrometry (LC-MS)
Authors
1 Bio-Pharma Laboratories Pvt.Ltd., Guntur-522002, Andhra Pradesh, IN
2 Department of Organic Chemistry, Andhra University, Visakhapatnam-530003, A. P., IN
3 Division of Crop Chemistry and Soil Science, Central Tobacco Research Institute, Rajahmundry-533105, Andhra Pradesh, IN
4 Department of Chemistry, Acharya Nagarjuna University, Nagarjuna Nagar-522510, A. P., IN
Source
Asian Journal of Research in Chemistry, Vol 4, No 7 (2011), Pagination: 1125-1130Abstract
A rapid and sensitive liquid chromatography-mass spectrometry (LC-MS/MS) method with multiple reaction monitoring (MRM) was developed for the determination of solanesol in tobacco. Sample preparation was performed by ultrasonic extraction with methanol and then supernatant was extracted with hexane. The method used atmospheric pressure chemical ionization (APCI) detection in positive-ion mode. The separation of solanesol was performed on a Symmetry RP18 column with a mixture of acetonitrile and isopropanol (1:1, v/v) containing 2mM ammonium acetate as mobile phase. Quantification of solanesol was performed by the standard addition method. The limit of quantification (LOQ) and limit of detection (LOD) of solanesol were, respectively, 5.0 ng/ml (S/N = 10) and 1.5 ng/ml (S/N = 3). The relative standard deviations of peak area were 0.89 and 1.12% for intra-day and inter-day, respectively. The recovery of solanesol ranged from 97.72 to 99.67% and the corresponding R.S.D.s were less than 2.7%. Analysis took 5 min, making the method suitable for rapid determination of solanesol in tobacco. The proposed method has been successfully applied to the analysis of solanesol in various tobacco samples.
