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Table 6-2 <br />Page two <br /> <br />Parameter Unit Procedure Instrumentation Reference <br />N03-N ppm Phenoldisulfonic Bausch & L~xnb ASA Monograph #9 <br /> Acid Method Spectrophotometer p. 1216, 1965. <br />NH4-N ppm Semimicro Micro-Kjel~iahl ASA Monograph #9 <br /> Kjeldahl Digestion flasks p. 1171, 1965. <br />Se ppm Hot Water Perkins-Elrner ASA Monograph #9 <br /> Extraction Models 306, p. 1122, 1965. <br /> Hydride-Atomic 403, 5000 Analysis-AA. <br /> Absorption <br />B ppm Hot Water Bausch & Lamb ASA Monograph #9 <br /> Soluble Spectrophotometer p. 1062, 1965. <br />Hg ppm Acid Perkin-Elmer Hesse, P.R. Soil <br /> Extraction Models 306, Chemical Analysis, <br /> Cold Vapor 403, 5000 1972. <br /> Generation Analysis-AA. <br />Mo ppm Acid Ammonium Bausch & Lomb ASA Monograph #9 <br /> Oxalate Spectrophotometer p. 1056, 1965. <br /> Models 700, R710 <br />Cu, Cd, Fe, ppm DTPA Perkin-Elmer SSSAP, Vol. 35, <br />Mn, Ni, Pb Extraction Models 306, No. 4, p. 600-602, <br />Zn 403, 5000 1971. <br /> Analysis-AA. <br /> <br />6-18 <br />