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The Chemical Analysis of Argonne Premium Coal Samples

Edited by Curtis A. Palmer
U.S. Geological Survey Bulletin 2144

Determination of 25 Elements in Coal Ash from 8 Argonne Premium Coal Samples by Inductively Coupled Argon Plasma-Atomic Emission Spectrometry

By Paul H. Briggs

Table 2. Operating conditions for ICAP-AES (inductively coupled argon plasma-atomic amission spectrometry).

Forward power 1,250 W
Sample argon flow rate 0 .5 L/min
Coolant argon flow rate 18 L/min
Sample pump rate 0 .7 mL/min
Observation height 14.5 mm above load coil
Nebulizer Modified Babington

Table 3. Concentrations of Na2O (in weight percent) and trace elements (in parts per million) in eight Argonne Premium Coal samples ashed and then digested by acid decomposition.

[Three analyses were done for each sample by ICAP-AES (inductively coupled argon plasma-atomic emission spectrometry]

Coal ash Na2O Be Co Cr Cu Li Mn Ni Sc Sr Th V Y Zn
UF PC-1-1 0.34 11 39 160 140 110 330 110 29 430 21 200 63 140
UF PC-1-2 .34 11 39 160 140 110 330 110 29 430 21 200 60 140
UF PC-1-3 .35 11 40 160 130 110 320 110 29 430 19 200 56 140
WY PC-2-1 1.9 3 18 74 150 46 240 55 19 3,000 16 170 42 150
WY PC-2-2 1.9 3 21 76 160 46 240 57 19 3,000 19 170 42 130
WY PC-2-3 1.9 3 20 75 160 46 220 55 20 3,100 15 170 43 140
IL PC-3-1 .88 4 29 300 67 46 570 180 17 190 15 240 26 1,100
IL PC-3-2 .93 4 27 210 69 47 520 120 17 200 13 230 26 1,300
IL PC-3-3 .86 4 26 210 64 46 520 120 16 190 12 220 23 1,200
PITT PC-4-1 .50 8 28 170 59 89 230 97 27 690 19 178 43 150
PITT PC-4-2 .50 8 29 170 68 90 230 100 27 700 15 180 42 88
PITT PC-4-3 .49 8 28 170 62 89 220 100 27 680 17 180 43 88
POC PC-5-1 2.1 15 75 190 310 100 340 140 33 2,100 23 230 110 100
POC PC-5-2 2.1 15 73 180 310 100 340 139 34 2,000 20 230 110 100
POC PC-5-3 2.1 15 75 180 310 110 350 140 33 2,100 22 230 110 100
UT PC-6-1 3.9 3 21 150 94 120 93 79 17 1,300 13 100 45 100
UT PC-6-2 3.8 3 20 110 92 120 92 74 16 1,300 13 96 43 110
UT PC-6-3 3.8 3 20 110 89 120 89 75 16 1,300 12 95 43 100
WV PC-7-1 .24 11 38 200 110 140 71 81 38 320 32 220 63 55
WV PC-7-2 .24 11 39 200 110 144 70 84 38 320 33 220 67 54
WV PC-7-3 .24 11 38 200 110 140 72 81 38 320 34 220 62 58
ND PC-8-1 7.0 2 8 23 48 28 850 14 8 5,200 6 41 23 54
ND PC-8-2 7.0 2 10 23 51 28 870 16 8 5,200 8 40 24 49
ND PC-8-3 7.0 2 9 26 130 28 870 15 8 5,200 7 41 23 50
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