1.5 mL Screw Cap Microtubes (Sterile, DNase/RNase Free, Autoclavable)

TRIS tris(hydroxymethyl)aminomethane

PIPES ((piperazine-N,N'-bis(2-ethanesulfonic acid))

MES 2-(N-morpholino)ethanesulfonic acid

Sodium Chloride, ACS, Reagent Grade, >99.5%

BES ((N,N-bis(2-hydroxyethyl)-2-aminoethanesulfonic acid))

Guanidine Hydrochloride, Biotechnology Grade, 99.7%

Tris Buffered Saline, pH 7.4, 20X Liquid Concentrate (TBS, 20X), 1L

DEPC-treated Water, 1L