>
Fa   |   Ar   |   En
   semi-automated continuous sample drop flow microextraction with swift preconcentration and atomic absorption spectrometry determination of lead in water and apple leaves  
   
نویسنده moinfar soleyman ,khayatian gholamreza ,jamil lazgin abdi
منبع journal of the iranian chemical society - 2018 - دوره : 15 - شماره : 11 - صفحه:2511 -2518
چکیده    In this paper, we present novel developments to our recently developed method so-called “continuous sample drop flow microextraction (csdf-me)” technique. previously, we showed that the csdf-me technique offers several advantages, including stability of extraction solvent, no need for holder device, and easy to operate. the merit of current study is to make the extraction steps faster with sample required for the analysis. the key novelty of proposed method includes usage of a solvent mixture (i.e., methanol and carbon disulfide), allowing to pump aqueous samples with a higher flow rate than the former technique which led to reduce the extraction time. results show that the technique is cable to become faster by five times with an enrichment factor of 93 for 4.0 ml of aqueous sample. the linear range and limit of detection for pb are found to be 0.1–6.0 and 0.03 µg l−1, respectively. the relative standard deviation for determination of 1.0 µg l−1 of pb in a sample is 2.9% (n = 5). furthermore, the relative recoveries of the developed csdf-me method for pb in tap water, mineral water, and standard reference material for apple leaves (1515) are shown to be 98, 100, and 94%, respectively.
کلیدواژه continuous sample drop flow microextraction ,lead ,graphite furnace atomic absorption spectrometry ,water sample
آدرس university of kurdistan, faculty of science, department of chemistry, iran, university of kurdistan, faculty of science, department of chemistry, iran, university of zakho, faculty of science, department of chemistry, iraq
 
     
   
Authors
  
 
 

Copyright 2023
Islamic World Science Citation Center
All Rights Reserved