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Quantification of Cu(II) in its samples based on stopped flow injection technique withnew ligand of hydazone
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| Author:
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SUHAIR YASEEN, BUSHRA BASHEER QASSIM, NAEEMAH OWAYED AL-LAMI
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| Abstract:
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New hydrazone ligand of 2-(4-biphenyl)imidazo[1,2-a]pyrimidine-3-hydrazone(BIPH)was prepared, identified
and using in spectrophotometric determination of copper ion by forming green complex which has maximum
light absorbance at 430nm. Stopped flow injection analysis with spectrophotometric detection unit was
suggested to quantify Cu(II).
The chemical and physical conditions of analysis were optimized.pH of 4,350ppm of BIPH, 2.8ml/min flow rate,
8 minutes as retention time, 60cm reaction coil length, 98injected volumeof Cu(II), and 130 injected
volumeof BIPH were found to be optimum conditions with limited dispersion and zero dead volume.The
linearity of proposed method was ranged between (0.1-1400)ppm and 0.1ppm as limit of detection.
In environmental samples of tap water and wastewater, biological sample of urine, and industrial sample of
alloy, Cu(II) quantification was successfully performed using the proposed method with standard addition style.
The recovery percent was 98.6-100.5% and relative error percent was (-1.388)-0.499%.
Statistical treatment was done on analytical results of Cu(II)quantification in wastewater and alloy samples.
According to calculated t and F critical values and comparison them with tableted values, it was found that
suggested method was suitable to perform Cu(II) determination in its samples with high repeatability,
precision, and accuracy.
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| Keyword:
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hydrazones, stopped flow-FIA, copper ion, water contamination.
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| EOI:
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| DOI:
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https://doi.org/10.31838/ijpr/2020.12.02.0162
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| Download:
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