Table 2. - Analysis of sediment standard and replicate sediment samples 
Sample Al Ba Cd Cr Cu Fe Mn Ni Pb Vv Zn 
standard (Z) (pp) (ppm) (ppm) (ppm) (2) (ppm) (pp=) (ppm) (ppm) (pp2) 
MESS-1-——-__ 5.40 270 0.41 50 23 2.9 480 36 32 80 160 
5.20 270 044 52 23 2.9 460 36 31 72 170 
5.20 270 44 52 23 2.9 460 34 30 79 170 
5.40 260 245 54 23 2.9 470 36 30 Ta 180 
5.50 260 045 52 23 2.9 470 36 30 79 170 
5.30 270 44 50 24 2.9 470 36 31 76 170 
5.50 260 045 52 24 2.9 450 37 37 74 190 
5.40 260 49 48 25 2.9 510 35 38 70 160 
5.60 270 39 48 25 2.9 490 37 34 78 170 
5.50 270 53 52 29 3.0 470 35 37 82 170 
5.50 270 47 51 26 2.9 500 30 32 70 160 
5.70 280 46 50 28 3.0 480 37 36 78 160 
x——————-_ 5.43 267 46 51 24.8 2.92 476 35.4 33.3 75.5 170 
0 15 7 03 1.8 2.1 04 18 2.0 3.2 4.1 8.9 
cv(z)} 2.9 2 7.6 3.6 8.4 1.4 4 5.7 9.6 5.4 5.3 
Best value? 5.8 270 59 71 25 3.0 513 30 34 Ue 191 
o—--—-—--— 02 ol ll 4 2 25 3 6 5 17 
Fes ee re ee 
Sample Al Ba Cd Cr Cu Fe Mn Ni Pb Vv Zn 
standard Z) m) m m a 4 m (ppm (ppm) o (ppa 
MAG 7.40 430 14 88 27 4.6 710 64 22 110 140 
7.60 440 15 93 28 4.6 720 64 22 110 140 
7.60 430 13 92 30 4.6 700 60 21 120 140 
7.40 430 15 90 27 4.6 720 64 21 110 140 
7.50 440 13 90 27 4.6 700 64 21 120 140 
r—-—-- 7.50 434 14 90.6 27.8 4.6 710 63.2 21.4 114 140 
0 ol 6 O01 2.0 1.3 0 10 1.8 5 5.5 0 
cv(z)t-—--- 1.3 1 Tal 22 4.7 0 1 2.8 2.6 4.8 0) 
Beat value 78.9 3490 15 3100 333 34.9 3710 353.8 326 3142 3148 
ee SS ee SS ee eS 
Sample Al Ba Cd Cr Cu Fe Mn Ni Pb V Zn 
standard (Z) ( ) (ppm) (ppm) (ppm) (Z) (ppm) (pp=) (ppm) (ppm) (ppm) 
B-12 3.10 260 0.067 39 6.3 1.6 290 12 15 40 43 
3.20 260 071 37 6.3 1.6 290 10 16 40 40 
3.10 250 -080 39 6.8 1.6 290 13 18 40 40 
3.20 260 075 39 6.8 1.6 300 10 17 40 40 
2.80 260 083 37 6.3 1.6 290 10 16 34 40 
x 3.08 258 -080 38.2 6.5 1.6 292 sit 16.4 38.8 40.6 
o——_--—-—- 16 5 -006 1.1 3 0 5 1.4 1.1 2.7 1.3 
cv(z)1———_ 55.3 2 8.1 2.9 4.2 () 2 12.9 7.0 6.9 33 
i 
Sample Al Ba Cd Cr Cu Fe Mo Ni Pb Vv Zn 
standard (Z) (pp) m) (ppm) (ppm) (2) (ppm) (ppm) (ppm) (ppm) (ppm) 
M10-05-02-S2 212 26 <.02 5.0 ql 30 240 <2 3.6 7.5 4.2 
12 26 <.02 6.0 ql -30 240 <2 3.3 6.5 4.2 
12 25 <.02 6.0 <1 30 240 <2 3.6 6.5 4.2 
212 24 €.02 5.0 q.1 30 240 <2 3.3 7.5 4.2 
12 23 <.02 5.0 <1 -30 240 <2 3.3 Ulee) 4.2 
x —_—_— 12 25 ¢<.02 5.4 Gel -30 240 <2 3.4 Tiel 4.2 
0 —— oO 1 0 6 0 0 0 0 02 6 0 
cv(Z)l1-——-_ 0 5 0 10.1 0 0 0 0 4.8 7.7 0 
\Coefficient of variation. 
2values reported by the Marine Analytical Chemistry Standards Program, National Research Council, Canada. 
3value judged to be most appropriate based on multiple analyses conducted at USGS Analytical Labs, Reston, VA. 
18 
