A flexible method of carbonate determination using an automatic gas analyzer equipped with an FTIR photoacoustic measurement chamber

The Analyst ◽  
1999 ◽  
Vol 124 (3) ◽  
pp. 361-365 ◽  
Author(s):  
Wenxin Liu ◽  
Zhongxi Sun ◽  
Maine Ranheimer ◽  
Willis Forsling ◽  
Wenxin Liu ◽  
...  
Keyword(s):  
Gas Analyzer ◽  
Photoacoustic Measurement ◽  
Carbonate Determination ◽  
Measurement Chamber

High NA spectrograph for a Raman gas analyzer

2020 ◽  
Author(s):  
V. V. Vitkin ◽  
E. E. Popov ◽  
A. A. Kharitonov ◽  
I. N. Kaliteevsky ◽  
V. M. Polyakov
Keyword(s):  
Gas Analyzer

scholarly journals Silicon Oxide Etching Process of NF3 and F3NO Plasmas with a Residual Gas Analyzer

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3026
Author(s):  
Woo-Jae Kim ◽  
In-Young Bang ◽  
Ji-Hwan Kim ◽  
Yeon-Soo Park ◽  
Hee-Tae Kwon ◽  
...  
Keyword(s):  
Greenhouse Gas ◽  
Silicon Oxide ◽  
Gas Analysis ◽  
Gas Analyzer ◽  
Dc Offset ◽  
Cleaning Performance ◽  
Oxide Etching ◽  
Residual Gas ◽  
Etch Rates ◽  
Very High

The use of NF3 is significantly increasing every year. However, NF3 is a greenhouse gas with a very high global warming potential. Therefore, the development of a material to replace NF3 is required. F3NO is considered a potential replacement to NF3. In this study, the characteristics and cleaning performance of the F3NO plasma to replace the greenhouse gas NF3 were examined. Etching of SiO2 thin films was performed, the DC offset of the plasma of both gases (i.e., NF3 and F3NO) was analyzed, and a residual gas analysis was performed. Based on the analysis results, the characteristics of the F3NO plasma were studied, and the SiO2 etch rates of the NF3 and F3NO plasmas were compared. The results show that the etch rates of the two gases have a difference of 95% on average, and therefore, the cleaning performance of the F3NO plasma was demonstrated, and the potential benefit of replacing NF3 with F3NO was confirmed.

Photoacoustic measurement of thermal properties of KCl1−XBrX:Eu2+ mixed crystals

1996 ◽  
Vol 257 (5-6) ◽  
pp. 519-523
Author(s):  
F.J. Espinoza-Beltrán ◽  
R. Ramírez-Bon ◽  
R. Pérez-Salas ◽  
R. Aceves ◽  
O. Zelaya-Angel ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Mixed Crystals ◽  
Photoacoustic Measurement

Use of a Sodium Chloride—Phosphate Buffer for pH Standardization in a New Blood-Gas Analyzer with an Isotonic Sodium Chloride Bridge

1973 ◽  
Vol 19 (11) ◽  
pp. 1243-1247 ◽  
Author(s):  
P A Drinker ◽  
D C Noonan ◽  
N Ramanaiah ◽  
J R Tole
Keyword(s):  
Sodium Chloride ◽  
Blood Gas ◽  
Gas Analyzer ◽  
Liquid Junction ◽  
Isotonic Sodium Chloride ◽  
Salt Depletion ◽  
The Stability ◽  
Conventional Scheme ◽  
Blood Gas Analyzer ◽  
Junction Potential

Abstract Two different blood-gas analyzers were tested to determine the effects on blood pH measurement of changing the reference bridge solution from saturated KCl to normal saline (0.16 mol of NaCl per liter). This change, which necessitated the preparation of modified buffers equimolal in NaCl with respect to blood, virtually eliminated salt depletion of the bridge solution and improved the stability of the liquid-junction potential between the bridge solution and the sample. The instruments we used were the Corning 165 pH Blood Gas Analyzer and the Radiometer E5021 pH Electrode with PHM72 Acid Base Analyzer. Comparison of results on clinical blood samples indicates that performance with the modified bufferbridge system is the same as that obtained with the conventional scheme. Analytical performances of the Corning and Radiometer instruments for PO2 and PCO2, as well as for pH, were comparable.

ENVIRONMENTAL COMPATIBILITY AND ACCURACY OF A PORTABLE BLOOD GAS ANALYZER IN THE PREHOSPITAL SETTING

1995 ◽  
Vol 23 (Supplement) ◽  
pp. A37
Author(s):  
Bartholomew Tortella ◽  
Robert Lavery ◽  
James Doran ◽  
John Seigel
Keyword(s):  
Prehospital Setting ◽  
Blood Gas ◽  
Gas Analyzer ◽  
Environmental Compatibility ◽  
Blood Gas Analyzer
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