MODERN POLAROGRAPHIC METHODS [BY] HELMUT SCHMIDT [AND] MARK VON STACKELBERG

Edité par Academic Press, 1963

Vendeur : CorgiPack, Fulton, NY, Etats-UnisCorgiPack

Vendeur avec une évaluation de 4 étoiles

Vendeur AbeBooks depuis 19 octobre 2015

Livre relié

Etat: Occasion - Satisfaisant

EUR 9,13

 Frais de port gratuits 
Expédition nationale : Etats-Unis

Quantité disponible : 1 disponible

Ajouter au panier
Retours gratuits sous 30 jours

A propos de cet article

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. . . .…

N° de réf. du vendeur WB009196

Détails bibliographiques

Titre
MODERN POLAROGRAPHIC METHODS [BY] HELMUT SCHMIDT [AND] MARK VON STACKELBERG
Auteur
Schmidt, Helmut
Éditeur
Academic Press
Année de publication
1963
État de l'article
Good
Reliure
Hardcover
Dimensions
24 cm.
Catalogues du vendeur
SCIENCE::Electricity

CorgiPack

Fulton, NY, Etats-Unis

Vendeur avec une évaluation de 4 étoiles

Vendeur AbeBooks depuis 19 octobre 2015

Frais d'expédition à l'intérieur de ce pays : Etats-Unis

Article5 à 14 jours ouvrés2 à 6 jours ouvrés
Premier articleEUR 0,00EUR 7,97
Les délais de livraison sont fixés par les vendeurs et varient en fonction du transporteur et du lieu. Les commandes transitant par les douanes peuvent être retardées et les acheteurs sont responsables de tous les droits ou frais associés. Les vendeurs peuvent vous contacter au sujet de frais supplémentaires afin de couvrir toute augmentation des coûts d'expédition de vos articles.

Modes de paiement

  • Visa
  • Mastercard
  • American Express
  • Carte Bleue
  • Apple Pay
  • Google Pay

Description de la boutique

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.

Spécialité

Crafts and much more!, Hobbies, Judaica, Military History, Art, Music