Citric acid [0.3% wt]

Organotin Standard Mixture 8 - Tin IS Ethyl Derivatives Internal standards ethylderivatives 1000 µg/mL in isooctane (based on total mass)) 5x1mL Ethyltripropyltin 1955.11 Di-n-heptyl diethyltin 2493.18 Tetra-n-propyltin 2490.12

Fosetyl-Al,neat,neat,50mg,

Caffeine, 100µg/ml in MeOH, 1ml