25-Hydroxyvitamin D2, 50μg/ml, 1ml

N-ethylperfluoro-1-octanesulfonamide, 50µg/ml in MeOH, 1,2ml

n-Alkanes C10-C40 (even + pristane/phytane) 18 Analytes, each 100µg/ml in cyclohexane; units: 1x1mL, 5x1mL, 10x1mL This standard includes all the even n-paraffins + pristane and phytane. n-Decane C10 n-Dodecane C12 n-Tetradecane C14 n-Hexadecane C16

Piperidine, 250mg