Saturday , 25 May 2019

Second order derivative spectrophotometry for simultaneous determination of Hg(II) and Ti(IV) using 3,4-dihydroxybenzaldehyde isonicotinoylhydrazone (DHBINH)

Dr. Srinivas Jagarlapudi*, Dr. V. Suryanarayana Rao, A. Ravi Kumar, Panchumarthi Srinivas, CH. Sunil Babu
Obvez Labs Pvt. Ltd.  Plot No. 22 & 23, ALEAP Industrial Area, Pragathi Nagar, Hyderabad, Telangana-500090, India.

A B S T R A C T
A second order derivative spectrophotometric method is developed for the simultaneous determination of mercury (II) and titanium (IV) using 3, 4-DHBINH without any prior separation.  Beer’s law is obeyed between 4.014 to 24.06 µg/ml of mercury (II) at 375 nm and 0.949 to 5.724 µg/ml of titanium (IV) at 360 nm.  The metal ion interfere with the determination of each other in zero order as well as in first order spectrophotometry.  Zero crossing wavelengths are 363 and 372 nm. The optimum condition for maximum color development and other analytical parameters were evaluated.

Keywords: 3, 4-DHBINH, Hg (II), Ti (IV), second order spectrophotometry, Mercury, Wavelength, & Beer’s law

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