Dust jacket condition: None. Solid retired library book with usual library markings; else VG. Text free of underlining, writing and highlighting. From the Foreword: The polarographic method developed about 40 years ago by Heyrovsk is still used with undiminished success; though it is unchanged in principle, numerous modifications of the classical method, some trivial, others important, have been published in recent years. It seems, therefore, timely to discuss these new procedures, to point out their advantages and disadvantages with respect to established polarographic methods, and, insofar as it is at present possible, to outline their significance for analysis and the solving of scientific problems. The improvements striven for in these new methods have essentially the following intent: 1. Increase in Sensitivity. Although in recent years there has been a considerable advance in the development of apparatus, nevertheless the possibilities of modern amplifier and recording techniques have not by any means been fully utilized. The reason for this is that any further increase in the sensitivity of apparatus is pointless as long as over-all sensitivity is limited by the reaction which is being investigated. As is well known, this limitation of sensitivity is controlled in polarography by the capacitance current. For the build-up of the electrical double layer at a constantly maintained voltage, the increasing surface of the growing drop requires a transfer of charge, which is greater the further conditions are removed from the zero potential of the dropping-mercury electrode. (With an applied alternating-current voltage there is in addition an alternating-current charging current.) If the faradic current is of the same order of magnitude as the capacitance current, or is less, then its exact determination is impossible. Attempts to compensate the capacitance current were made from quite an early date, and from them a necessary improvement, particularly for analytical purposes, was achieved. . . . Seller Inventory # WB009196

Contact seller

Report this item

Bibliographic Details

Title: MODERN POLAROGRAPHIC METHODS [BY] HELMUT ...

Publisher: Academic Press

Publication Date: 1963

Binding: Hardcover

Condition: Good

Store Description

CorgiPack offers nonfiction of all sorts but chiefly in the areas of the performing and fine arts and history. We are also the manufacturers and suppliers of CorgiPack corrugated book and media mailers.

Visit Seller's Storefront

Seller's business information

CorgiPack
NY, U.S.A.

Terms of Sale:

We guarantee the condition of every book as it's described on the Abebooks web sites. If you're dissatisfied with your purchase (Incorrect Book/Not as Described/Damaged) or if the order hasn't arrived, you're eligible for a refund within 30 days of the estimated delivery date. If you've changed your mind about a book that you've ordered, please use the "Ask bookseller a question" link to contact us.

Shipping Terms:

We generally ship by the next business day. We want your order to reach you in the same condition it leaves our shelves -- so much so that we've created our own brand of shipping mailer. CorgiPack� mailers are constructed with a B-flute corrugated fiberboard pad providing solid edge and corner protection in transit, protection sadly lacking in cheap bubble mailers. And they're 100% recyclable -- just put them out with the household paper! International orders are shipped via AIR and should arrive in 7 to 10 days after shipping. Oversize items (e.g. sets containing 2 or more volumes, 4to, folios) and high cost items are sometimes subject to additional shipping charges; we will contact you for your approval if such is the case. Orders shipped outside of the United States may be subject to import taxes, customs duties and fees levied by the destination country. International shipments may be subject to such import taxes, customs duties and fees, which are levied once a shipment reaches the recipient's country. Additional charges for customs clearance must be borne by the recipient; we have no control over these charges and can't predict what they may be. Customs policies vary widely from country to country; you should contact your local customs office for more information. When customs clearance procedures are required, it can cause delays beyond our original delivery estimates.

Payment Methods
accepted by seller

Add to Wants