Zobrazeno 1 - 10
of 18
pro vyhledávání: '"R. K. Marcus"'
Publikováno v:
Journal of AOAC INTERNATIONAL. 93:1788-1797
The preliminary validation of a high-performance liquid chromatography particle beam mass spectrometry method (HPLC-PB/MS) with electron impact ionization source for analysis of botanical extracts is presented. The LC-PB/MS system was evaluated for t
Publikováno v:
Energy & Fuels. 24:4301-4311
The monomer fraction of a representative petroleum pitch, M-50, was characterized in terms of both the predominant polycyclic aromatic hydrocarbon (PAH) backbones and their extent of alkylation. Such an identification of individual molecular species
Publikováno v:
Surface and Interface Analysis. 31:869-873
Factors controlling the depth resolution in radio frequency glow discharge optical emission spectroscopy (rf-GDOES) depth profiling analysis of thin films have been investigated using anodic alumina films of varying thicknesses with delta function ma
Publikováno v:
Analytical Chemistry. 70:3434-3443
The absorbance of Cu atoms sputtered from a Cu cathode in a laboratory-modified radio frequency glow discharge atomizer for atomic absorption spectrometry was measured at different regions within the atomizer chamber for different discharge parameter
Publikováno v:
Analytical Chemistry. 66:3916-3924
The design and preliminary operating characteristics of a particle beam/hollow cathode atomic emission spectrometry (PB/HC-AES) device is described. By use of a high-efficiency thermal-concentric nebulization system coupled to a particle beam LC/MS i
Publikováno v:
Analytical Chemistry. 65:2478-2484
A radio-frequency- (rf-) powered glow discharge has been interfaced to a double-focusing mass spectrometer. This type of discharge allows direct analysis of nonconducting, as well as conducting, solids. The rf discharge source and electrical system o
Autor:
R. K. Marcus
Publikováno v:
Glow Discharge Plasmas in Analytical Spectroscopy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64002e42c69bf23db554dbe0ce0d3982
https://doi.org/10.1002/0470857854.ch13
https://doi.org/10.1002/0470857854.ch13
Autor:
R. K. Marcus
Publikováno v:
Glow Discharge Plasmas in Analytical Spectroscopy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58cd2c299bea8fa944b57abab6695454
https://doi.org/10.1002/0470857854.ch4
https://doi.org/10.1002/0470857854.ch4
Publikováno v:
MRS Proceedings. 596
Compositional depth profiles have been obtained on chemical solution deposited lead zirconate titanate (PZT) thin films using radio-frequency glow discharge atomic emission spectroscopy. The technique is very rapid, requiring less than one minute for