PMID- 16586121
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20070511
LR  - 20160512
IS  - 1618-2642 (Print)
IS  - 1618-2642 (Linking)
VI  - 385
IP  - 3
DP  - 2006 Jun
TI  - The concept of constant emission yield in GDOES.
PG  - 568-85
AB  - This review paper describes the evolution of the quantification procedure for 
      compositional depth profiling (CDP) in glow discharge optical emission 
      spectrometry (GD-OES), based on the constant emission yield concept. The concept 
      of emission yield (EY) is defined and ways of measuring it experimentally are 
      discussed. The history of the development of quantitative CDP is reviewed, which 
      shows that all of the different approaches depend on the assumption that the EY 
      is essentially a matrix-independent quantity. Particular emphasis is placed on 
      the dependence of the EY on the plasma parameters of current, voltage, power and 
      pressure. In short, impedance changes (current voltage) can significantly affect 
      the emission yield and should either be corrected mathematically or the impedance 
      should be kept constant by pressure regulation in order to obtain reliable 
      results from GDOES CDP. On the other hand, the effect of varying the pressure on 
      the emission yield can be considered to be minor within the limits of practical 
      operating conditions for most CDP applications. It is worth, however, bearing in 
      mind that varying the discharge pressure has a significant effect on the plasma 
      processes, and does affect the emission yield when these variations are large. 
      The experimental results obtained for the emission yield are related to the 
      results from theoretical model calculations published on the subject.
FAU - Bengtson, Arne
AU  - Bengtson A
AD  - KIMAB, Drottning Kristinas vag 48, 11428, Stockholm, Sweden.
FAU - Nelis, Thomas
AU  - Nelis T
LA  - eng
PT  - Journal Article
DEP - 20060404
PL  - Germany
TA  - Anal Bioanal Chem
JT  - Analytical and bioanalytical chemistry
JID - 101134327
EDAT- 2006/04/06 09:00
MHDA- 2006/04/06 09:01
CRDT- 2006/04/06 09:00
PHST- 2005/12/22 00:00 [received]
PHST- 2006/03/02 00:00 [accepted]
PHST- 2006/02/27 00:00 [revised]
PHST- 2006/04/06 09:00 [pubmed]
PHST- 2006/04/06 09:01 [medline]
PHST- 2006/04/06 09:00 [entrez]
AID - 10.1007/s00216-006-0412-7 [doi]
PST - ppublish
SO  - Anal Bioanal Chem. 2006 Jun;385(3):568-85. doi: 10.1007/s00216-006-0412-7. Epub 
      2006 Apr 4.