TRIS HYDROXY METHYL AMMONIUM IN PAKISTAN

Brand      : CDH
Packings : 500 Gram
Grade      : Molecular Biology (MB)

PARAMETER LIMIT

• Description White crystalline powder.
• Solubility 40% solution in HPLC water is clear and not more than 10 APHA in colour.
• Identification (By FTIR) Conforms.
• Minimum Assay (Acidimetric, on dried material) 99.8%
• Melting point 168-172°C
• pH (of 1M soln. in water) 10.5 – 12.0

MAXIMUM LIMIT OF IMPURITIES

– Loss on drying (at 105°C) 0.5%
– Maximum UV Absorbance (1M soln. in HPLC water) at 260 nm 0.04
– Maximum UV Absorbance (40% soln.in HPLC water,1cm)at 290 nm 0.05
– Insoluble matter Passes filter test.
– Chloride (Cl) 0.002%
– Sulphate(SO4) 0.0005%
– Iron (Fe) 0.0005%
– Heavy metals (as Pb) 0.0002%
– RNase Dnase,Protease and phosphatases None detected.