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CODELL M, 1954, ANAL CHIM ACTA, V11, P233
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ENNS JH, CITED INDIRECTLY
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FRIZZELL LD, 1944, IND ENG CHEM ANAL ED, V16, P615
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FURMAN NH, 1939, SCOTTS STANDARD METH, P179
[10]
RUSSELL ER, CITED INDIRECTLY