>
Fa   |   Ar   |   En
   2,2-hydroxyphenylbenzoxazole as a selective chelating agent for complexation with tin and zinc: a voltammetry study  
   
نویسنده abbasi shahryar ,hamdeghadareh somayeh ,rezaei loghman ,farmany abbas
منبع journal of medicinal and pharmaceutical chemistry research - 2020 - دوره : 2 - شماره : 1 - صفحه:128 -137
چکیده    A highly selective and sensitive adsorptive stripping procedure for simultaneous determination of trace tin and zinc is presented in this study. the method is based on the adsorptive accumulation of the complexes of sn (ii) and zn (ii) ions with 2, 2- hydroxyphenylbenzoxazole (hbo) onto a hanging mercury drop electrode, followed by the reduction of the adsorbed species by differential pulse cathodic stripping voltammetry. the optimal experimental conditions include the use of 0.1 m acetate buffer (ph 5.0), 2.0×10-5 m hbo, an accumulation potential of -0.35 v (versus ag/agcl), an accumulation time of 90 s and a scan rate of 100 mv/s. under optimized conditions, linear calibration curves were established for the concentration of sn(ii) and zn(ii) in the range of 0.2-100.0 µg/l and 0.1-120.0 µg/l, respectively, while the detection limit is 0.09 µg/l for tin and 0.01µg/l for zinc for a 90 s adsorption time. the method was applied to the determination of tin and zinc in biological samples with satisfactory results.
کلیدواژه 2-hydroxyphenylbenzoxazole ,tin ,zinc ,voltammetry
آدرس ilam university, faculty of sciences, department of chemistry, iran, ilam university, faculty of sciences, department of chemistry, iran, hamadan university of medical sciences, dental research center, iran, hamadan university of medicinal sciences, dental research center, iran
پست الکترونیکی a.farmany@ut.ac.ir
 
     
   
Authors
  
 
 

Copyright 2023
Islamic World Science Citation Center
All Rights Reserved