LCGC Application Note Alert Having trouble viewing this email? Click here Azithromycin According US Pharmacopeia The ALEXYS Antibiotics Analyzer is used for routine assay and impurity analysis of Azithromycin in various formulations according USP 41 monographs. Erythromycin Ointments According US Pharmacopeia Erythromycin analysis in creams, lotions, etc., based on HPAEC-PAD using the ALEXYS Antibiotics Analyzer according to the official 2018 USP 41—NF36 monograph. Sugar Alcohols Used as Sweeteners HPAEC-PAD with a 4-step potential waveform is applied for analysis of Erythritol, Xylitol, Sorbitol, Mannitol, and Maltitol, resulting in excellent reproducibility. Phytosterols in Vegetables, Nuts, and Seeds Fast and sensitive analysis of plant sterols and plant stanols, using electrochemical detection without derivatization on Boron-Doped Diamond (BDD) electrodes. Iodide in Urine A selective and sensitive method is described using the ALEXYS Analyzer equipped with a silver electrode with an analysis time of 12 min. Iodide in Milk For the analysis of iodide in milk a sensitive and robust HPLC-ECD method is presented, using a Boron Doped Diamond (BDD) working electrode for detection. 3-Hydroxykynurenine (3-HK or 3-HKyn) The use of the ALEXYS Neurotransmitter Analyzer is shown for sensitive analysis of the neurotoxin 3-HK down to a detection limit of 0.4 nM.