共 7 条
[3]
MARMOY F. B., 1939, Journal of the Society of Chemical Industry, V58, P275
[4]
Nichols M. L., 1944, INDUST AND ENGINEER CHEM ANALYT ED, V16, P137, DOI 10.1021/i560126a026
[5]
Piper C.S., 1966, SOIL PLANT ANAL ASIA
[7]
SANDELL CB, 1944, COLORIMETRIC ANAL TR