0086-731-88112150 sales@sandegroup.com 
0086-731-88112150 sales@sandegroup.com
1.Test procedures
Weigh approximately 0.008g of the sample, perform the test according to the set testing procedure, and calculate the sample 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: 0.1mL/min Absorption solution: pure water
Combustion process
Step | Sample Introduction Time (s) | Distance (mm) | Retention Time (s) |
Step 1 | 17 | 180 | 200 |
Step 1 | 100 | 30 | 100 |
Step 3 | 100 | 20 | 100 |
Step 4 | 30 | 80 | 100 |
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: 10ul Linear range:10-80mg/L
Detector: Dionex-ADRS 600
4.Test results
Sample | Sample mass(g) | Theoretical Conc.(%) | Measured Conc.(%) | Recovery(%) |
FKM | 0.0081 | 65 | 65.01 | 100.02 |
0.0083 | 65.21 | 100.32 | ||
0.0079 | 65.29 | 100.45 | ||
0.0081 | 65.19 | 100.29 | ||
0.0078 | 64.92 | 99.88 | ||
0.0081 | 65.01 | 100.02 | ||
Aver. | 65.11 | 100.16 | ||
RSD(%) | 0.22 | 0.22 | ||
0086 731 88112150
0086 731 88134650
sales@sandegroup.com 0086 731 89864000 0086 731 88134650
service@sandegroup.com 
0086 731 88112150 0086 731 88134650
sales@sandegroup.com 0086 731 89864000 0086 731 88134650
service@sandegroup.com 