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chemical oxygen demand cod reagent 1% w

electrode filling solutiondouble junct

ph buffer solution ph 7.000 (yellow) +

sodium sulphite 5% zero dissolved oxyge

0.05 mg/l C from NIST KHP Total Organic

0.06 mg/l C from NIST KHP Total Organic

0.07 mg/l C from NIST KHP Total Organic

0.08 mg/l C from NIST KHP Total Organic

0.09 mg/l C from NIST KHP Total Organic

0.1 mg/l C as 1,4- Benzoquinone Total Or

0.1 mg/l C as Sucrose Total Organic Carb

0.1 mg/l C from NIST KHP Total Organic C

0.1% ammonium chloride resistivity solut

0.2 m sodium phosphate mobile phase buff

0.2 mg/l C as KHP Total Organic Carbon (

0.25 mg/l C from NIST KHP Total Organic

0.25 mg/l C from NIST KHP Total Organic

0.25 mg/l C from NIST KHP Total Organic