Method 1640 Tuning Standard

4-Methyl-2-nitrophenol, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 119-33-5

Terephthalic acid, bis(2-ethylhexyl) ester, 250mg

Method 1613 Clean-up Standard, 8ng/ml in Nonane, 20ml