Standard solution 1 in 1 mL PyridineStandard solution 2 in 1 mL PyridineStandard solution 3 in 1 mL PyridineStandard solution 4 in 1 mL PyridineStandard solution 5 in 1 mL PyridineButanetriol Internal Standard in pyridine, 5 mLTricaprin Internal Standard in pyridine, 5 mL
