Page 41 - Application Notebook - Solution for Food Safety

Application No. G294
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„ Trace Level Analysis
Table 2 and Fig. 2 show the analysis conditions and the
chromatogram respectively for a trace level analysis of
5 μg/L organophosphorus pesticides via high-pressure
splitless injection.

Table 2 Analysis Conditions for Low-Concentration Organophosphorus Pesticides
Model : Nexis GC-2030
Detector : FPD-2030 (P-mode)
Column : SH-Rtx-1701 (0.25 mm I.D. × 30 m, d.f. = 0.25 μm)
Column Temperature : 60 °C (1 min) - 20 °C/min - 180 °C (0 min) - 5 °C/min - 200 °C (10 min) - 7 °C/min - 280 °C (5 min) Total 37.4 min
Injection Mode : High Pressure Splitless (300 kPa, 1 min)
Carrier Gas Controller : Constan Linear Velocity (He)
Linear Velocity : 46.8 cm/sec
Injection Temperature : 260 °C
Detector Temperature : 300 °C
Injection Volume : 2 μL

S/N S/N
1: Ethoprophos : 42 12: MEP (Fenitrothion) : 17
2: Phorate : 39 13: Isofenphos : 15
3: Thiometon : 42 14: PAP (Phenthoate) : 16
4: Terbufos : 30 15: Prothiofos : 18
5: Etrimfos : 33 16: DMTP (Mathidathion) : 21
6: ECP (Dichlofenthion) : 24 17: Butamifos : 19
7: Dimethoate : 26 18: Sulprofos : 25
8: Tolclofos-methyl : 23 19: Fensulfothion : 25
9: Chlorpyrifos : 16 20: EPN : 25
10: Formothion : 5 21: PMP (Phosmet) : 22
11: MPP (Fenthion) : 18 22: Pyraclofos : 15

Chromatogram of Low-Concentration (5 μg/L) Organophosphorus Pesticides

First Edition: Jul. 2017
For Research Use Only. Not for use in diagnostic procedure.
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