01777nas a2200145   4500008004100000022001400041245015800055210006900213260008400282300001200366490000700378520109800385100002301483856012501506       2011                        eng d  a0263-617400aRemoval of metal ions from aqueous solution using trioctyl phosphine oxide-containing mixed solvents in conjunction with a fibre-supported solid membrane0 aRemoval of metal ions from aqueous solution using trioctyl phosp  a5 WATES WAY, BRENTWOOD CM15 9TB, ESSEX, ENGLANDbMULTI-SCIENCE PUBL CO LTDcJAN  a169-1830 v293 a<p>A novel method has been developed for the removal of mercury, arsenic and tin ions using a fibre-supported solid membrane placed between the source phase and the receiving phase which contained trioctyl phosphine oxide (TOPO) in a mixed solvent. The fibre-supported solid membrane was prepared by the esterification of cellulose fibre with tartaric acid at 120 degrees C. The experimental variables explored were the initial concentration of the metal ion (10(-2) to 10(-4) M) in the source phase, the type of mixed solvent employed [containing TOPO, TOPO + acetone, TOPO + tetrahydrofuran, TOPO + 1,4-dioxane, TOPO + methanol, TOPO + ethanol or TOPO + 2-propanol (20-80% v/v)], the concentration of HCl (0.25-1 M) in the receiving phase and the stirring speed (50-130 rpm) of the bulk source and the receiving phase. The efficiency of the organic solvent in the mixed solvent followed the order: TOPO + tetrahydrofuran &gt; TOPO + 1,4-dioxane &gt; TOPO + acetone &gt; TOPO + 2-propanol &gt; TOPO + ethanol &gt; TOPO + methanol &gt; TOPO. The separation of the metal ions was discussed.</p>1 aGaikwad, Abaji, G.  uhttps://library.ncl.res.in/content/removal-metal-ions-aqueous-solution-using-trioctyl-phosphine-oxide-containing-mixed-001129nas a2200145   4500008004100000022001400041245007800055210006900133260005200202300001200254490000600266520057600272100002300848856011200871       2014                        eng d  a1558-925000aRemoval of carbonate ion through cellulose fiber supported solid membrane0 aRemoval of carbonate ion through cellulose fiber supported solid  aPO BOX 1288, CARY, NC 27512-1288 USAbINDAcJAN  a120-1260 v93 a<p>A novel fiber supported solid membrane was prepared by chemical modification of cellulose fiber with tartaric acid, 8-hydroxyquinoline and magnesium carbonate for removal of bicarbonate ion. Loading effect of tartaric acid, magnesium metal ion and 8-hydroxyquinoline over cellulose fiber was studied for removal of carbonate ion. The selective removal of carbonate, sulfate, phosphate, and nitrate ions through fiber supported solid membrane was investigated. The removal of carbonate ion with/without bubbling of CO2 was determined in source and receiving phases.</p>1 aGaikwad, Abaji, G.  uhttps://library.ncl.res.in/content/removal-carbonate-ion-through-cellulose-fiber-supported-solid-membrane-0