Method for determining ammonia content in cigarette main stream smoke by ion chromatography
A cigarette mainstream smoke and ion chromatography technology, which is applied in the field of cigarette mainstream smoke analysis, can solve problems such as difficult elution, and achieve good symmetry
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[0037] Commercially available commercial cigarettes were sorted according to cigarette weight and draw resistance, and then equilibrated at 22±2°C and relative humidity (60±5)% for 48 hours. Use a rotary smoking machine to smoke cigarettes in accordance with the requirements specified in GB / T 16450-2004. Use the absorption bottle specified in the tobacco industry standard YC / T 377-2010, add 50mL of 0.005mol / L sulfuric acid solution into the absorption bottle, and collect the ammonia passing through the Cambridge filter. After the cigarette is smoked, put the filter piece that has captured the particulate phase components into a 250mL extraction bottle, add 50mL of 0.005mol / L sulfuric acid solution, shake and extract for 40min (oscillation frequency 160rpm), and accurately pipette the mainstream smoke of the cigarette. Add 5mL each of the gas-phase absorption solution and the particle-phase extraction solution to a 50mL volumetric flask, dilute to volume with 0.005mol / L sulfuri...
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