Total Scanning Fluorescence Characteristics of Coals and Implication to Coal Rank Evaluation

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td align="left">Disaggregation</td><td align="center">Sample core of cuttings, crushed to powder, dry-sieved to obtain grains with a 1000 to 63 <svg height="9.6750002" id="M7" style="vertical-align:-2.29482pt" version="1.1" viewbox="0 0 9.6374998 9.6750002" width="9.6374998" xmlns="http://www.w3.org/2000/svg">
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</svg>m size distribution</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td align="left">DCM (dichloromethane)</td><td align="center">10-minute ultrasound bath in 20 mL HPLC grade DCM</td></tr><tr><td align="left">DCM (dichloromethane)</td><td align="center">1-week digestion at room temperature in DCM</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Laboratory procedure to clean coal for TSF analysis.

Journal of Geological Research

tab1

Table 1

Table 1: Total Scanning Fluorescence Characteristics of Coals and Implication to Coal Rank Evaluation 