Turner Assoc

Cassidy and Frei [23] designed a microflow cell for the Turner Assoc. Model III fluorimeter for use with HPLC. Nanogram quantities of fluorescent materials could be detected. The volume of the flow cell was only 7.5 jul. The detector was unaffected by the flow-rate or composition of the solvent. This gives this detector a decided advantage over refractive-index or UV detectors. The peak shapes were symmetrical and the linear range of response was 2-3 orders of magnitude. 

Many systems that have been used consist of a commercial fluorimeter fitted with a micro flow-through cell. Descriptions of such systems can be found in the papers by Katz and Pitt , Cassidy and Frei and Roth and Hampai , while the manufacturers of the fluorimeters used also market flow cells (Aminco and Turner Assoc.). Conmercial equipment especially designed for use in HPLC has also been available for several years, with emission lines and filters (Siemens, Dr. Ing. Herbert Knauer, Laboratory Data Control, DuPont, Varian), as well as with monochromators (Winopal Forschung, Perkin-Elmer, Schoeffel, Aminco, Turner Assoc., Jasco). Cells of these designs are small enough (ca. 20 gl) to be able to give a small contribution to the peak width with suitable connection lines and electronics. However, adequate information on this point is not generally available, in some instances perhaps because the reaction systems frequently used with these instruments contribute much more to the peak width. 

Turner MD and Ship JA (2007) Dry mouth and its effects on the oral health of elderly people. J Am Dent Assoc 138(Suppl) 15S-20S... 

Bichet, D. G., Turner, M., and Morin, D. (1998) Vasopressin receptor mutations causing nephrogenic diabetes insipidus. Proc. Assoc. Am. Physicians. 110, 387-394. 

Rich, S., and N. C. Turner. Importance of moisture on stomatal behavior of plants subjected to ozone. J. Air Pollut. Control Assoc. 22 718-721, 1972. 

Marple, V.A., K.L. Rubow, W. Turner and I.D. Spengler (1987). Low flow rate sharp-cut impactors for indoor air samphng Design and calibration, J. Air Pollution Control Assoc., 37, 1303-1307. 

Turner, M. (1979). Nutrition of some marine microalgae with special reference to vitamin requirements and utihzation of nitrogen and carbon sources. J. Mar. Biolog. Assoc. U.K. 59, 535—552. 

Stilwell DP (1989) CO2 resonrces of the Moxa Arch and the Madison Reservoir. In Eisert JL (ed) Gas Resources of Wyoming. Wyoming Geol Assoc 40th Field Conf, Casper, p 105-115 Stuart FM, Turner G (1992) The abundance and isotopic composition of the noble gases in ancient fluids. Chem Geol 101 97-109... 

NB See also Ref T16 Turner A, Osol A, The spectrophotometric determination of die dissociation constants of theophylline, theobromine and caffeine,/. Am. Phar. Assoc., 38,158-161 (1949) for spectrophotometric absorbance versus pH mediod. 

Grant, S., Turner, A.J., Bartimole, T.M., Nelms, P.A., Joe, V.C., and Jarvis, W.D., Modulation of l-[p-D-arabinofuranosyl]cytosine-induced apoptosis in human myeloid leukemia cells by Staurosporine and other pharmacological inhibitors of protein kinase C, Oncol. Res., 6,87,1994. Bertrand, R., Solary, E., Kohn, K.W., and Pommier, Y, Staurosporine may activate a common final pathway to apoptosis, Proc. Am. Assoc. Cancer Res., 34,1735,1993. 

Heydecker W, Higgins J, Turner YJ 1974. Proc. 17th Intern Seed Testing Assoc Congress Walsa June 17-22,... 

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