Hydrophilic solid-phase extraction of melamine with ampholine-modified hybrid organic-inorganic silica material.
Wang T1, Zhu Y, Ma J, Xuan R, Gao H, Liang Z, Zhang L, Zhang Y.
Journal of separation science.J Sep Sci.2015 Jan;38(1):87-92. doi: 10.1002/jssc.201400900. Epub 2014 Nov 26.
In this work, an ampholine-functionalized hybrid organic-inorganic silica sorbent was successfully used to extract melamine from a milk formula sample by a hydrophilic interaction solid-phase extraction protocol. Primary factors affecting the extraction efficiency of the material such as extraction
A novel protein sample pretreatment method based on ampholine immobilized polymer microsphere (ampholine@PM) was developed for the fractionation of intact proteins prior to protein digestion and peptide analysis to reduce the dynamic range of human plasma proteome. After incubation with our prepared
Identification of antihyperuricemic peptides in the proteolytic digest of shark cartilage water extract using in vivo activity-guided fractionation.
Murota I1, Taguchi S, Sato N, Park EY, Nakamura Y, Sato K.
Journal of agricultural and food chemistry.J Agric Food Chem.2014 Mar 19;62(11):2392-7. doi: 10.1021/jf405504u. Epub 2014 Mar 10.
A peptide that exerts antihyperuricemic activity after oral administration was identified from a microbial protease (alcalase) digest of the water extract of shark cartilage by in vivo activity-guided fractionation, using oxonate-induced hyperuricemic rats. Water extract of shark cartilage was first