Class A Borosilicate Glass Burette with PTFE Stopcock Capacity:25mL Bright-line helium spectrum tube at

Bright-line helium spectrum tube at 26cm with a 10cm central capillary

Ceramic center on each 5 x 5-inch iron wire gauze square spreads Bunsen flame heat beneath beakers and flasks

Used to detect proteins by the violet-color reaction with peptide bonds

Polypropylene body with a PTFE plug stopcock and leak-proof screw cap supports phase separation of liquid samples where glass breakage risk is unacceptable

Class A Borosilicate Glass Burette with PTFE Stopcock Capacity:25mL Bright-line helium spectrum tube atPTFE needle valve stopcock on a precision bore Class A borosilicate glass burette, delivering DIN ISO 385 compliant accuracy for analytical titrations.