NEWS
Need Special Pellets? FILL
Make Them In a
COMPRESS
PARR
PELLET PRESS FIVE EASY STEPS convert powdered samples into convenient tablet or pellet form using the Parr Series 2811 Pellet Press. Only stainless parts contact the sample. Moderate hand pressure develops compressive force of approx. 2000 psi. Pellets are easily ejected into a stainless receiver. Interchange able punch and die sets offered in three siies.
EJECT
Obtainable from any Parr Dealer, or write direct for details.
PARR INSTRUMENT CO., EST. 1899
·
REMOVE
MOLINE. ILLINOIS
MAKERS OF CALORIMETERS AND PRESSURE REACTION EQUIPMENT
For further information, circle number 30 A-1 on Readers' Service Card, page 41 A
LABRITECTURE
® INDUSTRIAL U B S
A New Technique of Laboratory Planning METALAB offers a basic method in laboratory planning . . . called, "LABRITECTURE." This technique will assist and direct you in the modernization and expansion of your laboratory or in planning a new one. Our new 4B Catalog and Manual will give you the sound basis for solving these laboratory problems.
Handbuch der
HOSPITALS
Equipment Corp.
252 DUFFY AVENUE, HICKSVILLE, L. Ι., Ν. Υ. METALAB EQUIPMENT CORP.,
EDUCATIONAL
2 5 2 D u f f y A v e . , H i c k s v i l l e , L. Ι . , Ν . Υ .
G e n t l e m e n : Please send a copy of your new 180-page C a t a l o g 4B t o : Name.
Title.
Company. Address. ® - , TJA. Reg.
City.
.Zone.
-State.
For further Information, circle number 30 A-2 on Readers' Service Card, page 41 A
30A
Analytischen
Chemie.
W. Fresenius and G. Jander. Springer-Verlag, Berlin, Gottingen, Heidelberg, Germany, 1953. Band Va/S. xiii + 370 pages. DM 72. Band VIII \>y, xiii + 118 pages. DM
24.
Reviewed by HANS STOL-
TEN, General Aniline & Film Corp.
For complete "LABRITECTURE" details request our new 180-page Catalog 4B.
METALAB
prepared the first practical book con cerned with inorganic analysis by paper chromatography techniques. Extensive tables of chromatographic solvents and Rf values as well as detailed descriptions of procedures are presented. Workers in other fields of endeavor may find in terest in the discussion of cellulose pow der chromatographic columns. An unusual feature of the book is the presentation of two schemes for qualita tive inorganic analysis using filter paper chromatography procedures exclusively. These schemes of analysis should find interest among teachers of chemistry as well as workers dealing with problems of separation and identification of short half-life radioisotopes. Detailed de scriptions are also presented for the quantitative estimation of molybdenum, boron, gold, and uranium as individual ions, and copper, iron, aluminum, ti tanium, vanadium, uranium, bismuth, antimony, and cadmium in various types of mixtures. Other brief sections are concerned with chromatography on media other than cellulose and a review of the recent work on electromigration and electrochromatography of inorganic ions. One of the few shortcomings of this volume is the omission of data on the sensitivities of the procedures employed for the detection of anions and cations. The reversal of the letters identifying the chromatograms on the colored front ispiece may confuse the casual reader. One other minor oversight was the mis labeling of Figure 5b as an illustration of the test tube chromatography procedure referred to in the text. While this book may ultimately prove to be an interim report on the develop ment of chromatographic procedures for the separation and estimation of inor ganic ions, it comes as an excellent intro duction to a rapidly growing field of in terest.
Volume Va/3 is a continuation of Part Three of the "Handbuch der Analytischen Chemie" dealing with quantitative determinations and meth ods of separation. It treats the ele ments of the fifth main group, and this section is specifically concerned with the element phosphorus. In keeping with the encyclopedic nature of this work, the treatment of the subject matter is extremely comprehen sive. The exhaustive series of analytiANALYTICAL
CHEMISTRY
