Current Science

Open Access Open Access  Restricted Access Subscription Access

Spectrophotometric determination of molybdenum with Syzygium jambolanum DC leaf extracts


Affiliations
1 Department of Chemical Engineering, Indian Institute of Science, Bengaluru 560 012, India
 

A novel spectrophotometric method for the determination of molybdenum (Mo) in industrial materials has been developed using the leaf extract of Syzygium jambolanum DC based on the reaction of Mo (VI) at pH 7.0 to produce an orange–yellow complex with an absorption maximum at 426 nm. The molar absorptivity of the complex is 4.27 × 104 l mol–1 cm–1 and the absorption is linear in the range 0.05–1.0 ppm. Sandell sensitivity coefficient was found to be 2.25 × 10–3 μg/cm2. The method is ten times more sensitive than the aqueous thiocyanate system. It has been applied successfully in micronutrient fertilizer, artificial freshwater and sea-water analyses.

Keywords

Green chemistry, molybdenum, plant extract, spectrophotometry, Syzygium jambolanum
User
Notifications
Font Size

  • Koel, M. and Kaljurand, M., Application of the principles of green chemistry in analytical chemistry. Pure Appl. Chem., 2006, 78, 1993–2002.

  • Wang, J., Real-time electrochemical monitoring: toward green analytical chemistry. Acc. Chem. Res., 2002, 35, 811–816.

  • Tobiszewski, M., Mechlińska, A. and Namieśnik, J., Green analytical chemistry – theory and practice. Chem. Soc. Rev., 2010, 39, 2869–2878.

  • de la Guardia, M. and Garrigues, S. (eds), Challenges in Green Analytical Chemistry, The Royal Society of Chemistry, UK, 2011,p. 330.

  • de la Guardia, M. and Garrigues, S. (eds), The concept of green analytical chemistry. In Handbook of Green Analytical Chemistry, John Wiley, Chichester, UK, 2012; doi:10.1002/9781119940722.ch1

  • Armenta, S., Garrigues, S. and de la Guardia, M., Trends in analytical chemistry. Green Anal. Chem., 2008, 27, 497–511.

  • de la Guardia, M. and Garrigues, S., Wilson and Wilson’s comprehensive analytical chemistry. In Green Analytical Chemistry (ed. Barcelo, D.), Elsevier, Oxford, UK, 2010, vol. 57.

  • Crouthamel, C. E. and Johnson, C. E., Spectrophotometric determination of uranium by thiocyanate method in acetone medium.Am. Chem., 1952, 24, 1780.

  • Piper, C. S. and Beckwith, R. S., J. Soc. Chem. Ind. (London),1948, 67, 374.

  • Sandell, E. B., Colorimetric Determination of Trace Metals,Interscience, New York, 1950, 2nd edn, p. 334.

  • Grudpan, K., Hartwell, S. K., Lapanantnoppakhun, S. and McKelvie, I., The case for the use of unrefined natural reagents in analytical chemistry – a green chemical perspective. Anal. Methods,2010, 2, 1651–1661.

  • Monji, A. B., Zolfonun, E. and Ahmadi, S. J., Application of water extract of slippery elm tree leaves as a natural reagent for selective spectrophometric determination of trace amounts of molybdenum (VI) in environmental water samples. J. Toxicol.Environ. Chem., 2009, 91, 1229–1235.

  • Ayyanar, M. and Subash-Babu, P., Syzygium cumini (L.) skeels: a review of its photochemical constituents and traditional uses. Asian Pac. J. Trop. Biomed., 2012, 2, 240–246.

  • Maciel, M. C. G. et al., Syzygium Jambolanum treatment improves survival in lethal sepsis induced in mice. BMC Complem. Altern.Med., 2008, 8, 57.

  • Kirtikar, K. R. and Basu, B. D., In Indian Medicinal Plants, Vol. II (eds Singh, B. and Singh, M. P.), Dehra Dun, 1991, 2nd edn,p. 1053.

  • Chandrasekaran, M. and Venkatesalu, V., Antibacterial and antifungal activity of Syzygium jambolanum seed. J. Ethnopharmacol., 2004, 91, 105–108.

  • Slowing, K., Sollhuber, M., Carretero, E. and Villar, A., Flavonoid glycosides from Eugenia jambos. Phytochemistry, 1994, 37, 255–258.

  • Methods for measuring the acute toxicity of effluents and receiving waters to fresh water and marine organisms. US EPA/OW/Office of Science and Technology, Acute toxicity manual, Section 7–10, 2007, p. 33.


Abstract Views: 356

PDF Views: 126




  • Spectrophotometric determination of molybdenum with Syzygium jambolanum DC leaf extracts

Abstract Views: 356  |  PDF Views: 126

Authors

J. R. Mudakavi
Department of Chemical Engineering, Indian Institute of Science, Bengaluru 560 012, India
K. Puttanna
Department of Chemical Engineering, Indian Institute of Science, Bengaluru 560 012, India

Abstract


A novel spectrophotometric method for the determination of molybdenum (Mo) in industrial materials has been developed using the leaf extract of Syzygium jambolanum DC based on the reaction of Mo (VI) at pH 7.0 to produce an orange–yellow complex with an absorption maximum at 426 nm. The molar absorptivity of the complex is 4.27 × 104 l mol–1 cm–1 and the absorption is linear in the range 0.05–1.0 ppm. Sandell sensitivity coefficient was found to be 2.25 × 10–3 μg/cm2. The method is ten times more sensitive than the aqueous thiocyanate system. It has been applied successfully in micronutrient fertilizer, artificial freshwater and sea-water analyses.

Keywords


Green chemistry, molybdenum, plant extract, spectrophotometry, Syzygium jambolanum

References





DOI: https://doi.org/10.18520/cs%2Fv109%2Fi5%2F949-953