Conditions: column: C18, mobile phase: 70% Eluent A 40% Eluent B check method for mix.
Articles: Versella, G. Bagnasco, G. Mangia, A. "Journal of Chromatography" 349 (1985) 83-89 ...Title: Ion-Pair HPLC Analysis of Aspartame and Related Products ...Collection: 1 micron 37 mm PTFE filter with backup pad 1000 L at 2.5 L/min ...Analytical: HPLC C18 RCM Eluent: 60% [2.062 g 1-heptanesulfonic acid sodium salt and 0.45 g monobasic potassium in 1 L of DI water] and 40% [2.062 g 1-heptanesulfonic acid sodium salt in 1 L of 3:2 acetonitrile:water]. Detector: UV at 220 nm Albrecht, William N. Burr, Gregory A. Neumeister, Charles E. "Applied Industrial Hygiene" Vol 4, No 9, 1989, p 217. ...Virtually the same as the above article for sampling and analytical.
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