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Peaks | tR (min) | Conc. (ng/mL) | Precursor Ion | Product Ion | |
---|---|---|---|---|---|
1. | N-Nitrosodiethanolamine (NDELA) | 0.90 | 10 | 135.1 | 74.0 |
2. | N-Nitrosodimethylamine (NDMA) | 1.52 | 10 | 75.1 | 58.0 |
3. | N-Nitrosodiisobutylamine (NDIPLA) | 1.90 | 10 | 163.0 | 88.0 |
4. | N-Nitrosomorpholine (NMOR) | 2.38 | 10 | 117.1 | 45.2 |
5. | N-Nitrosomethylethylamine (NMEA) | 2.57 | 10 | 89.1 | 61.0 |
6. | N-Nitroso-N-methyl-4-aminobutyric acid (NMBA) | 2.61 | 10 | 147.1 | 117.0 |
7. | N-Nitrosopyrrolidine (NPYR) | 3.12 | 10 | 101.1 | 55.1 |
8. | N-Nitrosodiethylamine (NDEA) | 3.86 | 10 | 103.1 | 75.0 |
Peaks | tR (min) | Conc. (ng/mL) | Precursor Ion | Product Ion | |
---|---|---|---|---|---|
9. | N-Nitrosopiperidine (NPIP) | 4.66 | 10 | 115.1 | 69.0 |
10. | N-Nitrosoethylisopropylamine (NEIPA) | 4.91 | 10 | 117.1 | 75.0 |
11. | N-Nitrosodiisopropylamine (NDIPA) | 5.79 | 10 | 131.1 | 43.0 |
12. | N-Nitrosodipropylamine (NDPA) | 6.07 | 10 | 131.1 | 43.0 |
13. | N-Nitrosomethylphenylamine (NMPA) | 6.30 | 10 | 137.0 | 65.9 |
14. | N-Nitrosodiisobutylamine (NDIBA) | 7.23 | 10 | 159.1 | 57.1 |
15. | N-Nitrosodibutylamine (NDBA) | 7.46 | 10 | 159.1 | 57.1 |
16. | N-Nitrosodiphenylamine (NDPHA) | 8.17 | 10 | 199.1 | 169.0 |
Column | Raptor Biphenyl (cat.# 9309A12) | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dimensions: | 100 mm x 2.1 mm ID | ||||||||||||||||||||
Particle Size: | 2.7 µm | ||||||||||||||||||||
Pore Size: | 90 Å | ||||||||||||||||||||
Temp.: | 40 °C | ||||||||||||||||||||
Standard/Sample | Nitrosamine calibration mix, Method 521 (cat.# 31898) | ||||||||||||||||||||
N-Nitrosodiphenylamine (cat.# 31429) | |||||||||||||||||||||
Diluent: | Water | ||||||||||||||||||||
Conc.: | 10 ng/mL | ||||||||||||||||||||
Inj. Vol.: | 5 µL | ||||||||||||||||||||
Mobile Phase | |||||||||||||||||||||
A: | Water, 0.1% formic acid | ||||||||||||||||||||
B: | Methanol, 0.1% formic acid | ||||||||||||||||||||
|
Detector | MS/MS |
---|---|
Ion Source: | APCI |
Ion Mode: | APCI+ |
Mode: | MRM |
Instrument | UHPLC |
Sample Preparation | Standard solutions were prepared in 2 mL, screw-thread amber vials (cat.# 21143) and capped with 9 mm, short-cap, screw-vial closures (cat.# 24498). |
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