If you are having any difficulty using this website, please contact the Help Desk at Help@nullHofstra.edu or 516-463-7777 or Student Access Services at SAS@nullhofstra.edu or 516-463-7075. Please identify the webpage address or URL and the specific problems you have encountered and we will address the issue.

David A. Lloyd

Assistant Professor Emeritus of Chemistry


Degrees

PHD, 1969, Univ Calif Berkeley; BS, 1964, Univ Illinois Urbana-Champaign


Bio

Research Interests Biochemical Applications of LC-MS

LC-MS is a powerful technique for solving biochemical problems, both for separating the complex mixtures that are often encountered and for characterization of the primary structures of biopolymers. One such project involves the mechanism of sex determination by egg incubation temperature found in many reptiles. This project is designed to test the hypothesis that temperature-dependent sex determination in snapping turtles is caused by a direct temperature or pH effect on the kinetics of one or more of the enzymes involved in steroid metabolism. Specifically, we are looking at the kinetics of transformation of testosterone into either dihydrotestosterone or estradiol and estrone. LC-MS allows determination of these steroids in crude tissue extracts.


Recent Courses Taught

Course Title Level
CHEM 137 FOUNDATNS IN ORGANIC CHEM LAB Undergraduate
Photo of David Lloyd

OFFICE
H. Berliner Hall 210
VOICE
516-463-5536
Send an Email