Hach Digesdahl 23130-20 - Page 84

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Lead, Dithizone (Method 8033)
A = µg/l reading from instrument
B = g sample amount from table
C = mL analysis volume from table
Manganese, PAN (Method 8149)
A = mg/L reading from instrument
B = g sample amount from table
C = mL analysis volume from table
Expected Pb
conc. (mg/kg)
Sample
amount (g)
Analysis
Volume (mL)
8-400 0.500 20.0
20-1000 0.400 10.0
50-2600 0.300 5.00
400-20000 0.200 1.00
1500-80000 0.100 0.50
Expected Mn
conc. (mg/kg)
Sample
amount (g)
Analysis
Volume (mL)
4-170 0.500 20.0
10-430 0.400 10.0
25-1100 0.300 5.00
200-8700 0.200 1.00
750-35000 0.100 0.50
A25×
BC×
----------------- mg/kg Total Pb=
A 2500×
BC×
------------------------ mg/kg total Mn=
DIGESTION PROCEDURE FOR SOLIDS, continued
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