1.Test procedures

Weigh two pieces sample (approximately 0.04g), start the test according to the set testing procedures, and calculate recovery rate.

2.Combustion conditions

Temperature: 1100℃                 Oxygen: 0.4L/min             

Argon(carrier): 0.2L/min                 Argon flow for humidification: 0.1L/min          

Water vapor: 0.1L/min               Absorption solution: 0.05% H₂O₂

_{Instrument:SDXNS200H}

Combustion process

3.IC conditions

Analytical Column: IonPac AS19 2*250mm   Guard Column: IonPac AG19 2*50mm

Eluent: EGC Ш KOH, 20mM, 0.25mL/min    Column temp.: 30℃

Quantitative loop: 400ul                               Linear range:0.1-4mg/L

Detector: Dionex-ADRS 600

4.Test results