$137.66

Copper Sulfate Solution, 1.6% (w/v) in 0.4% (v/v) Sulfuric Acid - R2318600-250A

$39.82

Ammonium Standard Stock Solution (250 ppm NH?) EP Standard Solution - 691-4

$81.14

Ammonium Standard Stock Solution (250 ppm NH?) EP Standard Solution - 691-16

$323.13

Continental Copper Solution - R2254000-4A

$162.72

Copper Sulfate Solution, 1.6% (w/v) in 0.4% (v/v) Sulfuric Acid - R2318600-1A

$99.74

Copper Standard, 1.0 ppm Cu in 12.5% (v/v) Ethanol - R2279100-500A

$93.39

Ammonium Chloride Buffer Solution, pH 10.0, EP EP Buffer Solution 4007300 - 627.7-8