•Active sampling of aldehydtes/ketones in the sorbent tube filled with - DNPH (2,4 - dinitrophenylhydrazine) impregnated silica gel.
•Passive sampler filled with DNPH impregnated silica gel is ideal for sampling formaldehyde, acetaldehyde at low blank.You can connect the tube directly to a syringe at the time of analysis, and the structure is designed for easy operation with low extraction loss.
Sorbent tubes are the most widely used collection media for sampling hazardous gases and vapors in air, mostly as it relates to Industrial hygiene.
Available Sorbent Tube Types: Silica Gel, Charcoal Active, Carbon Beads
Model: DNPH Active Sorbent Tube
Trapping Substance: Aldehydes ,Ketones
Adsorbent: DNPH (2,4 - dinitrophenylhydrazine) impregnated silica gel (350mg) DNPH impregnated amount: about 1mg
Dimension: 43mm ×φ16mm Diameter of suction extraoral: about φ4mm and φ6mm (two stages)
Transportation/Storage: Refrigerated transp- ort/Chilled storage
Expiration date: Within one year after production
Quantity: 10pcs. per aluminum package