NEW FIRST TIME IN UNITED STATES
Automatic Protein and/or
Peptide Analyses (Either Individual Samples or Column Effluent)
ULTRASONIC NEBULIZER
Quantitate... Total Nitrogen by Kjeldahl Total Protein by Biuret Total Protein by Folin—Ciocalteau (Lowry modification) Amino Groups by Ninhydrin Tyrosine by Folin—Ciocalteau Histidine by Pauly Diazo Reaction Arginine by Sakaguchi Glutamic Acid by Decarboxylase Lysine by Decarboxylase Albumin by HABA Dye [2-(4' hydroxj azobenzene) benzoic acid]
Analyze... Biological Fluids directly
A TWO FREQUENCY MULTIPURPOSE AUXILIARY APPARATUS FOR ELECTRON MICROSCOPY If liquids of low viscosity or suspensions with par ticle sizes up t o 1 micron are placed on an ultra sonic transmitter of high frequency (3 Mc/sec) they are nebulized instantly. The resulting fog can be collected by sedimentation on a diaphragm or grid for examination under an electron micro scope. The Schoeller apparatus was designed primarily for the preparation of dispersions which have a tendency to conglomerate during drying. Other applications for which the equipment may be used include the dispersion of fine solids in liquids for particle size determinations, composi tion studies on various sediments and the clean ing of small instruments or tools.
Write for catalog 991.
BRINKMANN
Effluent from DEAE or Resin Chromatographic Column Effluent from Poraeth Electrophoretic Column Electrophoretic Starch Block Fractions Electrophoretic Paper Chromatogram Segments Check point stages in Protein Fractionation Counter Current Distributions
with the TEC Η Ν I C Ο Ν®
^\^^2£\rralyzer ® Any or all of these determinations may be run on the same AutoAnalyzer: Takes only two minutes to change from one type of analysis to another. Any combination may be run simultaneously from the same sample by adding additional standard AutoAnalyzer modules. The response time is such that most of the analyses may be run at 40 samples per hour. for information, select area of interest and write to
TECHNICON CHROMATOGRAPHY CORP. 52 R E S E A R C H P A R K · CHAUNCEY, N E W Y O R K
INSTRUMENTS, INC. 115 Cutter Mill Road, Great Neck, N.Y. PHILADELPHIA · CLEVELAND · HOUSTON . MIAMI · MENLO PARK, CAL. · ST. LOUIS Circle No. 159 on Readers' Service Card
84 A
·
ANALYTICAL CHEMISTRY
Circle No. 185 on Readers' Service Card
