FFAP/6201 充柱测定车间空气中的甲酸

FFAP/6201 packed column to determine formic acid in the air of workshop
FFAP/6201 packed column to determine formic acid in the air of the workshop. Detailed information:

Fixing fluid: polyethylene glycol nitrobenzene modified

Carrier: 6201
Model: FFAP
Specification: 2m*3mm
Ratio: FFAP:6201=10:100
Material: Stainless steel
Application: Determination of formic acid in workplace air

Tengzhou Haohan Chromatography Instrument Technology Service Co., Ltd. uses headspace gas chromatography to simultaneously determine suitable conditions for four carboxylic acid compounds in the air of workplaces: formic acid, acetic acid, propionic acid and acrylic acid. A flow rate of 300 m L/min was used to collect 4.5 L of air sample. After being desorbed by sulfuric acid solution, the headspace equilibrium time was 60 min, and the equilibrium temperature was 50℃. The gas chromatography FID detector was used for separation and determination with FFAP packed column. . The spiked recoveries of formic acid, acetic acid, propionic acid and acrylic acid were 95.3%, 96.8%, 105%, and 94.6%, respectively; the minimum detection concentrations of the method were 0.4 mg/m3, 7.7 mg/m3, 3.4 mg/m3 and 6.6 mg/m3; relative standard deviation (RSD) is 5.84%~8.98%. The results show that the method has high sensitivity and ideal accuracy, and can reach the specified detection limit. It is suitable for the determination of carboxylic acid compounds in the air of tannery workshops.

FFAP/6201 packed column to determine the test spectrum of formic acid in the air of workshop: