Page 77 - Catalogue 2015

Cat. No. Ammonium acetate
012441 ULC/MS - CC/SFC

Assay (T, dry) 99.0-101.0%w/w Al (Aluminum) max. 1ppm
Ca (Calcium) max. 5ppm
Water (KF) max. 1%w/w Cu (Copper) max. 1ppm
Fe (Iron) max. 1ppm
Grad. elution H.Peak at 254nm max. 0.002AU K (Potassium) max. 5ppm
Li (Lithium) max. 1ppm
Grad. elution drift at 254nm max. 0.010AU Mg (Magnesium) max. 1ppm
Na (Sodium) max. 5ppm
F254nm (0.1%, as Quinine) max. 0.5ppb Ni (Nickel) max. 1ppm
Pb (Lead) max. 1ppm
F365nm (0.1%, as Quinine) max. 0.5ppb Zn (Zinc) max. 1ppm
Appearance of solution (1M in Complete, colorless solution
MS-ESI+ (0.1%, as Reserpine) max. 30ppb Water)
Filter test (1M in Water) Passes test
T250nm (1M) min. 93% pH (1M in water) 6.0-7.5

T260nm (1M) min. 96%

T280nm (1M) min. 98%

A250nm (10%) max. 0.03AU

A260nm (10%) max. 0.02AU

A280nm (10%) max. 0.01AU

Chloride (Cl) max. 0.0005%

Sulfate (SO4) max. 0.001%

Filtered through 0.1µm, before final crystallization.

Cat. No. Ammonium acetate
012478 LC-MS

Assay (T, dry) 98.0-101.0%w/w Cu (Copper) max. 1ppm
Water (KF) max. 2%w/w Fe (Iron) max. 1ppm
Grad. elution H.Peak at 254nm max. 0.004AU K (Potassium) max. 5ppm
F254nm (0.1%, as Quinine) max. 1.0ppb Li (Lithium) max. 1ppm
F365nm (0.1%, as Quinine) max. 1.0ppb Mg (Magnesium) max. 1ppm
MS-ESI+ (0.1%, as Reserpine) max. 50ppb Na (Sodium) max. 5ppm
T260nm (1M) min. 95% Ni (Nickel) max. 1ppm
T280nm (1M) min. 97% Pb (Lead) max. 1ppm
Chloride (Cl) max. 0.001% Zn (Zinc) max. 1ppm
Sulfate (SO4) max. 0.002% Appearance of solution (1M in Clear colorless solution
Al (Aluminum) max. 1ppm Water)
Ca (Calcium) max. 5ppm Filter test (1M in Water) Passes test
pH (1M in water) 5.5-7.5

Cat. No. Ammonium acetate
012405 AR

Appearance White crystalline mater Nitrate (NO3) max. 0.001%
Assay (T, dry) 98-102%w/w Sulfate (SO4) pH max. 0.001%
Chloride (Cl) max. 0.0005% (5% in water) 6.7-7.3
Heavy metals (as Pb) max. 0.0005% Residue after ignition max. 0.01%
Iron (Fe) max. 0.0005% Water insolubles max. 0.005%

Cat. No. Ammonium acetate
012423
Molecular biology
Application:
Ammonium acetate aqueous solution may be used, typically, at a concentration of 10M in ethanol for
DNA precipitation from polymerase chain reaction ( PCR ).

Assay (T) 98-102%w/w pH (5% in water) 6.5-7.5
Chloride (Cl) max. 0.0005% Water insolubles max. 0.002%
Heavy metals (as Pb) max. 0.0005% DNase activity Not detected
Iron (Fe) max. 0.0005% RNase activity Not detected
Nitrate (NO3) max. 0.001% Protease activity Not detected
Sulfate (SO4) max. 0.001% A280nm (1M) max. 0.01AU