Accession Number : ADD007547

Title :   Nickel Analysis Device.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Yee,Tin Boo

Report Date : 04 Oct 1979

Pagination or Media Count : 9

Abstract : The nickel analysis device of this invention is comprised of a first automatic measuring system, a second automatic measuring system, and a colorimetric measurement system. The first automatic measuring system is provided with a means for transferring a sample of plating solution to be analyzed from a container to a first volumetric cup disposed to receive the solution into an inner section of the cup which is filled to overflowing into an outer section of the first volumetric cup. The outer section of the first volumetric cup has means for draining solution to a container. The second automatic measuring system is of similar design to first automatic measuring system, but the second automatic measuring system is designed to measure and transfer a standard ammonium hydroxide solution. The first and second automatic measuring system delivers the predetermined volumes of plating solution and ammonium hydroxide solution into an absorption cell wherein a colored complex is formed. A colorimetric measurement system is employed to measure the transmittance of a monochromatic light which is proportionate to the nickel of the colored complex. A monochromatic light is passed through the colored complex to a detector and amplifier means which determines a detector value proportionate to the transmittance or absorption of the light. The detecotr value is amplified and compared with a detector value measured on a standard sample treated similarly and as corrected by a blank sample to determine the nickel content of the chemical plating solution. (Author)

Descriptors :   *Patent applications, *Metal coatings, *Nickel, Colorimetric analysis, Volumetric analysis, Solutions(Mixtures), Plating, Monochromatic light, Cells, Absorption, Measuring instruments, Concentration(Chemistry)

Subject Categories : Polymer Chemistry
      Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE