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Avinash, K. and Nagaraja, P. and Shivakumar, A. and Krishna, H. and Nagaraja (2017) Spectrophotometric assay of creatinine in human serum sample. Arabian Journal of Chemistry, 10. S2018 - S2024. ISSN 1878-5352
Nagaraja, P. and Aradhana, N. and Suma, A. and Shivakumar, A. and Chamaraja, N. A. (2014) Quantification of antioxidants by using chlorpromazine hydrochloride: Application of the method to food and medicinal plant samples. Analytical Sciences, 30 (2). pp. 251-256. ISSN 0910-6340
Krishna, H. and Nagaraja, P. and Shivakumar, A. and Avinash, K. and Lingaiah, V. (2013) Hydroxylation of 4-amino-5-hydroxynaphthalene-2,7-disulfonic acid monosodium salt catalysed by horseradish peroxidase and hydrogen peroxide: Computation of kinetic parameters including its application to crude plant extracts. Journal of the Chinese Chemical Society, 60 (4). pp. 452-459. ISSN 0009-4536
Krishna, H. and Nagaraja, P. and Shivakumar, A. and Chamaraja, N. A. and Aradhana, N. (2013) Quantification and evaluation of kinetic bio-catalytic pathway of horseradish peroxidase in an electron mediated reaction system and its applications in plant extracts. Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 102. pp. 75-81. ISSN 1386-1425
Nagaraja, P. and Suma, A. and Aradhana, N. and Shivakumar, A. and Avinash, K. and Krishna, H. (2012) Quantification of antioxidants in medicinal plants and foodstuffs using Ce(IV) with indigo carmine as Chromogenic Probe. Food Analytical Methods, 5 (4). pp. 909-919. ISSN 1936-976X
Nagaraja, P. and Aradhana, N. and Suma, A. and Chamaraja, N. A. and Shivakumar, A. and Ramya, K. V. (2012) Amaranth dye in the evaluation of bleaching of cerium (IV) by antioxidants: Application in food and medicinal plants. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 95. 505 - 510. ISSN 1873-3557
Nagaraja, P. and Krishna, H. and Shivakumar, A. and Shrestha, Ashwinee K. (2012) Development of quantitative enzymatic method and its validation for the assay of glucose in human serum. Clinical Biochemistry, 45 (1). 139 - 143. ISSN 1873-2933
Nagaraja, P. and Avinash, K. and Shivakumar, A. and Krishna, H. (2012) Quantification of creatinine in biological samples based on the pseudoenzyme activity of copper–creatinine complex. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 92. 318 - 324. ISSN 1873-3557
Shivakumar, A. and Nagaraja, P. and Chamaraja, N. and Krishna, H. and Avinash, K. (2011) Determination of catalase activity using chromogenic probe involving iso-nicotinicacidhydrazide and pyrocatechol. JOURNAL OF BIOTECHNOLOGY, 155 (4). pp. 406-411. ISSN 0168-1656
Nagaraja, P. and Shrestha, A. and Shivakumar, A. and Al-Tayar, N. (2011) Molybdate assisted ninhydrin based sensitive analytical system for the estimation of drugs containing amine group. JOURNAL OF FOOD AND DRUG ANALYSIS, 19 (1). pp. 85-93.
Nagaraja, P. and Krishna, H. and Shivakumar, A. and Paulas, A. and Rangappa, D. (2011) Quantification of ultra-trace molybdenum using 4-amino-5-hydroxynaphthalene-2,7-disulfonic acid monosodium salt as a chromogenic probe. ANALYTICAL BIOCHEMISTRY, 411 (2). pp. 300-302.
Nagaraja, P. and Shrestha, A. and Shivakumar, A. and Al-Tayar, N. and Avinas Gowda, K. (2011) Spectrophotometric determination of catecholamine using vanadium and eriochrome cyaniner. QUIMICA NOVA, 34 (3). pp. 373-376. ISSN 0100-4042
Shivakumar, A. and Dinesh, R. and Krishna, H. and Nagaraja, P. (2010) Development and kinetic validation of an assay for the quantitative determination of peroxidase: Application in the detection of activity in crude plant tissues. Enzyme and Microbial Technology, 47 (6). 243 - 248. ISSN 0141-0229
Nagaraja, P. and Avinash, K. and Shivakumar, A. and Dinesh, R. and Shrestha, Ashwinee Kumar (2010) Simple and sensitive method for the quantification of total bilirubin in human serum using 3-methyl-2-benzothiazolinone hydrazone hydrochloride as a chromogenic probe. Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 77 (4). 782 - 786. ISSN 1386-1425
Shivakumar, A. and Nagaraja, P. and Aradhana, Narayanan and Avinash Gowda, K. (2010) Kinetic study of peroxidase-catalyzed coupling of benzene-1,4-diamine and N-(2-Aminoethyl)naphthalen-1-amine:development of micromolar hydrogen peroxide reaction system. Helvetica Chimica Acta, 93 (6). pp. 1227-1237. ISSN 1522-2675
Nagaraja, P. and Shivakumar, A. and Ashwinee, Shrestha Kumar (2009) Development and evaluation of kinetic spectrophotometric assays for horseradish peroxidase by catalytic coupling of paraphenylenediamine and mequinol. Analytical Sciences, 25 (10). pp. 1243-1248. ISSN 1348-2246
Nagaraja, P. and Shivakumar, A. and Shrestha, Ashwinee Kumar (2009) Peroxidase-catalyzed oxidative coupling of paraphenylenediamine with 3-dimethylaminobenzoic acid: application in crude plant extracts. Journal of Agricultural and Food Chemistry, 57 (12). pp. 5173-5177. ISSN 1520-5118
Nagaraja, P. and Shivakumar, A. and Shrestha, Ashwinee Kumar (2009) Quantification of hydrogen peroxide and glucose using 3-methyl-2-benzothiazolinonehydrazone hydrochloride with 10,11-dihydro-5H-benz(b,f)azepine as chromogenic probe. ANALYTICAL BIOCHEMISTRY, 395 (2). pp. 231-236. ISSN 1096-0309
Nagaraja, P. and Al-Tayar, Ghllab Saeed N. and Shivakumar, A. and Shresta, A. K. and Avinas Gowda, K. (2009) Spectrophotometric determination of the trace amount of thallium in water and urine samples by novel oxidative coupling reaction. E-JOURNAL OF CHEMISTRY, 6 (4). pp. 1153-1163. ISSN 0973-4945
Nagaraj, P. and Aradhana, N. and Shivakumar, A. and Shrestha, Ashwinee Kumar and Avinash Gowda, K. (2009) Spectrophotometric method for the determination of chromium (VI) in water samples. ENVIRONMENTAL MONITORING AND ASSESSMENT, 157 (1-4). pp. 575-582. ISSN 0167-6369
Nagaraja, P. and Prakash, J. S. and Shivakumar, A. and Ashwinee Kumar, S. (2008) Sensitive spectrophotometric methods for the assessment of nitrite in water sample. Environmental Monitoring and Assessment, 147 (1-3). pp. 235-241. ISSN 1573-2959
Nagaraja, P. and Naik, S. D. and Shrestha, A. K. and Shivakumar, A. (2007) A sensitive spectrophotometric method for the determination of sulfonamides in pharmaceutical preparations. Acta Pharmaceutica, 57 (3). pp. 333-342. ISSN 1846-9558
