两根大肉大捧一进一出好爽视频,麻豆md0077饥渴少妇,国产成人一区二区三区影,日本高清视频在线网站

UltraSep ESD CHOL

The special packings UltraSep ES CAAM and UltraSep ES CAAC were developed for the analysis of metabolic products of catecholamines and of serotonine in samples of urine. Columns for normal as well as

Mixtures of nucleobases, nucleosides, and nucleotides （e. g. hydrolysates of nucleic acids） can be separated by the high selective UltraSep ES PHARM RP18 packings as well as by

The packings for the separation of proteins were developed on the basis of a wide-pore material with an average pore diameter of 30 nm. This material allows a high resolution and separations of protei

The column is suitable for the separation of derivatives of amino acids （A） and peptides （P）. The common procedures are summarized in the following table. If samples are not often analyzed, esp. DABSY

MLD packings （MLD = monolayer dense） are very stable solide supports, known in the literature as “mixed self-assembled monolayers （SAM）”. They can be used both for basic and acidic compounds in a re