Ethylene dicysteate sequestrants and methods for preparationNovel compounds useful as sequestrants as well as builders for detergent compositions and methods for their preparation are disclosed.doi:US5693854 AGutierrez, Eddie NelsonWu, Shang-ren
Sample preparation In this study, all the consolidants were applied directly to single-sourced modern cotton canvas samples. The canvas used was a plain-woven fabric of 417 ± 3 g/m2 purchased in Barna Art (Barcelona, Spain). It consists of 9 and 11 threads/cm in the warp and weft...
US5346643 * 1992年12月9日 1994年9月13日 Tadahiko Kuno Polynuclear complex salt waste water clarificants and their preparationUS5346643 * 1992年12月9日 1994年9月13日 Jun-ichi Hosokawa Polynuclear complex salt waste water clarificants and their preparationUS5346643 * Dec 9, 1992 Sep 13, 1994 ...
Sample preparation for HPLC analysis. After a period of 7 days, the storage medium, consisting of distilled water where the specimens were immersed for the sorption test, was frozen. It was then lyophilized until the complete removal of the liquid, using a Model Alpha 1–4 LDPLUS lyophilizer...