L. R. Snyder and W. F. Roth ... Charles M. Gambrill , D R. Long , Harold D. McBride , B J. Heinrich , D O. Alford , R T. Edwards , J. W. Johnson , R E...
Applicationsof Linear Elution Adsorption. Chromatography to the Separation. andAnalysis of Petroleum. Determination of Total Nonaromatic Olefins in Gas Oils.
of aromatic compound classes because of its sensitivity and ... in the design of routineLEAC analyt- ical methods are ..... graphic methods have been developed.
May 1, 2002 - Lloyd Robert. Snyder. Analytical Chemistry 1969 41 (8), 1084-1094 ... Harry V. Drushel ... L. R. Snyder , B. E. Buell , and H. E. Howard.
application to the analysis of petroleum components. Previous applications (£, 4>. S) of elution adsorption chromatography to the custom analysis of complex.
May 1, 2002 - Harry V. Drushel ... L. R. Snyder , B. E. Buell , and H. E. Howard ... R W. King , W E. Haines , G H. Patterson , J C. Marantette , and G R. Meador.
the sensitivity of detection of nonvicinal sulfides in fraction B. The nonvicinal sulfide fraction (B), collected as in. Figure 3, shows the characteristic sul- fide-iodine ...
adsorption chromatography in the routine separation of compounds and compound classes. The technique is quick, convenient, and reproducible.
Jan 19, 2013 - In CFA column chromatography separation, baicalein and baicalin could be ... Baicalein and baicalin are two major flavonoids in Scutellaria, a.
Robert L. LeTourneau. Analytical Chemistry 1959 31 (4), 730-749 ... F. Geiss , H. Schlitt , F.J. Ritter , W.M. Weimar. Journal of Chromatography A 1963 12, 469- ...
difficulties attending reproduction of heating and carrier gas flow rate. For gas-liquid partition columns, Lichtenfels and coworkers (1) found that increasing ...
Applications of Linear Elution Adsorption Chromatography to the Separation and Analysis of Petroleum Determination of Total Nonaromatic Olefins in Gas Oils LLOYD R. SNYDER Union Research Center, Union Oil Company of Californiu, Brea, Calif.
b Samples boiling in the gas oil range (350' to 1000° F.) may b e rapidly analyzed for total nonaromatic olefins. Linear elution adsorption chromatography with alumina as adsorbent is used to separate a saturate-olefin fraction which is analyzed for olefins by the olefin-iodine complex absorption a t 340 mp. The present method is more accurate than any previously described routine procedure and is unique in its ability to determine trace amounts (
