Qingdao Zhenzheng Analytical
Instrument Co., LTD
Mobile: 15963292045
Email: qdzhenzheng@163.com
QQ: 2776447184
Add: Building 27, International Industrial Park,
Shandong University, No.669 East China Road,
High-tech Zone, Qingdao
Website: www.qdzhenzheng.com
Analysis of 6 volatile phenols in water samples by SPME-GC-FID
Qingdao Zhenzheng Analytical Instrument Co., LTD. Technical department
SPMEProbe item number:ZZ-SPME-06-s
Analysis condition:
Sample: 10 ml water sample with standard, the concentration of volatile phenol was 20 ng/ml
Extraction temperature: 50 ºC; Extraction time: 30 min; Mixing speed: 600 rpm; Salt concentration: 30%, w:v; The pH value is 1
Desorption time: 3 min; Desorption temperature 250 ºC
Column: HP-1 30 m × 0.32 mm × 0.4 µm
Inlet: 250 ºC, no shunt injection;
Carrier gas: Nitrogen, flow rate 2.5 ml/min
Programmed temperature rise: 50 ºC for 2 min, 8 ºC/min to 100 ºC, 15 ºC/min to 250 ºC for 3 min
Detector: FID
GC-FID chromatogram
Linear range, linear correlation coefficient, minimum detection limit and repeatability
Analytes | Linear Range (mg/L) | r | LOD (mg/L) RSD (%, n = 5) | ||
5 mg/L | 20 mg/L | ||||
P | 1-100 | 0.9894 | 0.041 | 10.1 | 2.7 |
2-CP | 0.5-50 | 0.9931 | 0.007 | 10.8 | 4.0 |
2-MP | 0.5-50 | 0.9978 | 0.019 | 9.3 | 2.5 |
2-NP | 0.5-50 | 0.9955 | 0.006 | 5.2 | 3.6 |
2,4-DCP | 0.5-50 | 0.9983 | 0.004 | 5.9 | 3.1 |
2,4,6-TCP | 0.5-50 | 0.9994 | 0.003 | 15.7 | 3.5 |
Test result of actual water sample and recovery rate of added standard
Analytes | Recovery (%, RSD %, n=3) | Sample concentration (mg/L) | ||||||
地下水 | 自来水 | 海水 (SW1) | 地下水 | 自来水 | 海水1 | 海水2 | 海水3 | |
P | 108.0 (14.2) | 108.1 (3.7) | 107.1 (14.8) | ND | ND | ND | ND | ND |
2-CP | 117.0 (10.2) | 108.8 (4.6) | 117.3 (15.3) | ND | ND | ND | ND | 4.0 |
2-MP | 106.7 (9.8) | 100.5 (3.3) | 107.1 (16.4) | ND | ND | ND | ND | ND |
2-NP | 115.6 (9.4) | 111.8 (4.2) | 111.2 (15.9) | ND | ND | ND | ND | ND |
2,4-DCP | 113.6 (11.0) | 108.6 (4.5) | 105.8 (17.2) | ND | ND | ND | ND | 40.6 |
2,4,6-TCP | 112.4 (17.3) | 106.7 (13.5) | 94.8 (15.6) | ND | ND | ND | ND | 4.3 |
Qingdao Zhenzheng Analytical Instrument Co., LTD
Tel: 15963292045 Email: qdzhenzheng@163.com
QQ: 2776447184 Add: Building 27, Shandong University International Industrial Park, No.669 East China Road, High-tech Zone, Qingdao
Technical support:浩瀚网络 Record number:鲁ICP备14019093号-1
Web address: www.qdzhenzheng.com