Do HPLC Gradient Systems Need To Be Complicated? Through the use of an interactive LCD. the L-SOUO J ^ t f r f H f r a either low-pressure or high-pressure gradient formejticft fâlqém on the analytical requirements. The Model L- 5000 can also be used ir> concert with Other EM SCIENCE/Hitachi components to form an interartfve automated HPLC svstem To r omplete your modular EM SCIENCE. Hilachi HPLC Systems. requpst aduit-onai inforrriciliun on m Pumps • Fluuiescent.p Detectors • Columns • UV Detectors • Autosampierb • High Punly • Seir-i-MicroSvMems • LO'umnOver·. Snlvuiut Reagents
For additional information on the L-bOUO or to arrange for a demonstration, call or write. Ill Wooikn-st Rd. C.ln-rrvHill.NJOSOl-iV^S ^609) 354-9200 (800)222-0342 E M
S C I E N C E
Associate of E. MenkiDarmstiJt.Cicrniani
Λ Division tit f M Industrti ·. In. 'Reg. TM Hitachi, Ltd., Japan
Circle RS #50 for literature. Circle RS #51 for a demonstration.
Specialty GASES &
Chemicals • • • • • • • • •
Calibration Gas Standards High Purity Gases Electronic Gases Silanes Clinical Gases Emission Gases Fluorocarbons Sterilizing Gases Research Gases
We offer afull range of high-purity gases and mixtures. Whether you require specialty gases in small quantities for laboratory work, or in production volumes, Liquid Carbonic can meet your needs. Liquid has established a network of specialty gas laboratories and stocking depots throughout North America. Our laboratories are equipped with sophisticated analytical instruments and staffed by chemists and engineers ready to meet your needs for specialty gases and solve your problems. If quality and service are what you expect from a supplier, why not write to Liquid Carbonic for further information and a catalog.
—ι LIQUID CARBONIC SPECIALTY GAS CORPORATION 135 SOUTH LA SALLE STREET · CHICAGO, ILLINOIS 606O3-4282
Send me your catalog and information on:
ι
Π Calibration Gases ϋ Emission Gases G Equipment • Electronic Gases • Clinical Gases D Sterilizing Gases
ι '
Name Title Company
ι , ι
Address City
Phone (
State
D Have your local representative contact me.
)
Zip
ι | I
CIRCLE 129 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 58, NO. 11, SEPTEMBER 1986 · 1101 A