ANALYTICAL CHEMISTRY, VOL. 50, NO. 13, NOVEMBER 1978
Table 11. Elemental Composition of Pepperbush Powder and Comparison with Other Botanical Reference Materials Pepperbush Orchard Tomato Pine NIES Leaves Leaves Spinach Seedles No. 1, (?), (61, (7), ( 8 ), pg/g hBS NBS NBS NBS drywt 1571 1573 1570 1575 K 1.57 (5%) 1.47 (%) 4.46 (5%) 3.56 (5%) 0.37 (%) Ca 1.45(%) 2.09 ( 7 0 ) 3.00 ( % ) 1.35 (%) 0.41 (%) Mg 4090 6200 (7000)
Fe
172
300
Mn 2050
91
Co (21)'
(0.2) 45 0.11 12
Pb (8)" Cd (8)"
cu
11 328
Zn
a
25
690 238 (0.6) 6.3 (3) 11 62
550 165 (1.5) 1.2 (1.5) 12 50
200 675 (0.1) 10.8 (
