PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 13277502

A recording function transformer and integrator for microspectrographic use.

G LOMAKKA
View original source ↗Export metadata ↓

Abstract

The source did not provide an abstract. Follow the original record for more information.

Explore related subjects

SpectrophotometrySPECTROPHOTOMETRY/apparatus and instrumentsJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

G LOMAKKA. 1955. A recording function transformer and integrator for microspectrographic use.. https://doi.org/10.1016/0014-4827(55)90074-4

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2002

Diode laser emission linewidth determination: application to H2O line profile studies in the 5 and 1.4 microm regions.

In order to study absorption line profiles using the stabilized diode laser spectrometer of Laboratoire de Physique Moléculaire et Applications (LPMA), a reliable determination of the emission line shape of different diodes laser is needed. In the near infrared region (1.39 and 1.66 microm) we used Distributed Feed Back diode lasers which operate around room temperature and in the middle infrared (5 and 8 microm) we used lead salt diode lasers cooled in a helium closed cycle cryostat or in a liquid nitrogen dewar. Some results obtained in H2O line profile studies in the 1.39 and 5 microm regions are presented as examples demonstrating how absorption line profile measurements can lead to erroneous values of the spectroscopic parameters when the contribution of the diode laser emission line width is neglected.

Spectrophotometry↗
PubMed1991

Spectrophotometric methods for the determination of sulphathiourea.

Three simple and sensitive spectrophotometric methods are described for the determination of sulphathiourea. The methods are based on the interaction of this thioamide with either iodine, tetracyanoethylene (TCNE) or copper nitrate to give the corresponding charge-transfer or metal-ion complexes, which can be measured at 363, 350 and 353 nm, respectively. In each case, a 1:1 complex was formed. Beer's law is obeyed for each procedure in a concentration range of 1-150 micrograms ml-1. The proposed procedures can be applied to the determination of sulphathiourea in its pharmaceutical formulations.

Spectrophotometry↗