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Table 2. (Cont.) <br />Soil parameter Unlt Procedure Instrumentation References <br />Aluminum (Al) ppm(ug/g) Total, flame Jarrell-Asli 810 (nitrous <br /> oxide-acetylene) <br />Arsenic (As) ppm(u9/g) Hot water extrac- Perkin-Elmer 5000 <br /> tton hydride-atomic <br /> absorption. <br />Molybdenum (Mo) ppm(pg/g) Ilydrofluoric Perkin-Elmer 5000 <br /> digestion, atomic <br /> absorption <br />Cyanide (CN) ppm(ug/g) hot water soluble Hach DR/2 spectrophotometer <br />Zinc (Zn) ppm(ug/g) Total digest Jarrell-Asn B10 <br />Atomic absorption <br />Iron (Fe) ppm(ug/g) Total digest Jarrell-Ash 810 <br />Atomic absorption <br />Copper (Cu) ppm(ug/g) Total digest Jarrell-Ash 810 <br />Atomic absorption <br />Std. Methods, pp. 149 d 170. <br />Jarrell Ash Methods Manual, 1976. <br />Anal. Letters, Vol, 1, pp. 505- <br />513, 1974. Analyses - AA. <br />ASA Monogr. M9, pp. 105b-1057. <br />Analyses - AA. <br />APIIA Std. Methods, 13th ed., <br />404 (1971) in Nater Nandbook, <br />Ilatch Analysis Procedure, 4th ed., <br />pp. 2-63. <br />Follett, R.11., Ph.D. Disser..,CSU, <br />1969. Total Digest, Jarrell- <br />Ash Methods Manual <br />Follett, R. H., Ph,D. Dlsser.,CSU, <br />1969. Total Digest, Jarrell- <br />Ash Methods Manual <br />Follett, R,H., Ph.D,.Disser.,CSU, <br />1969. Total Digest, Jarrell- <br />Ash Methods Nanual <br />N <br />W <br /> <br />