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KMID : 0371019880210020271
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Journal of Preventive Medicine and Public Health
1988 Volume.21 No. 2 p.271 ~ p.283
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Quantitative Analysis of Quartz, Mica, and Feldspar in Respirable Coalmine Dust in Taebaek Area by Fourier Transform Infrared Spectrophotometry
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최호춘/Choi HC
천용희/김해정/이정주/Cheon YH/Kim HJ/Lee JJ
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Abstract
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A Fourier transform infrared spectrophotometric method was described for the determination of quartz, mica(sericite) and feldspar(potassium feldspar) in respirable dust in Taebaek area.
The results were as follows; - -
1) The concentration of minerals were determined from the intensity of absorption peak of quartz at 799 cm-1, sericite at 539 cm-´, and potassium feldspar at 648 cm´ respectively.
2) The precision(C. V. % ) for the quartz determination was 7.70 2.68 % from 10 to 200 pg of quartz.
3) The precision for the sericite determination was 16.346.82 % from 30 to 500 ug of serictite.
4) The precision for the potassium feldspar determination was 5.28 1.74 % from 30 to 500 pg of
potassium feldspar.
5) The concentration of respirable dust in Taebaek area was 4.90 3.29 mg/m3 (0.4 93.7 % ), percent quartz was 1.804.14% (0.0120.56%), percent sericite was 11.376A3% (0.0029.69%), percent potassium feldspar was 8.15% (n=7, 3.4119.70%).
6) The difference of respirable coal dust, quartz, and sericite concentrations in drilling, coal cutting, hauling and seperating was significant respectively (p(0.05).
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