ELCAD CHLORINE EMISSION PDF

241000907506 Israel turkey meningoencephalomyelitis virus Species 0.000 claims 1.239000002245 particle Substances 0.000 claims description 3.230000005284 excitation Effects 0.000 claims description 6.238000000608 laser ablation Methods 0.000 claims description 8.239000012159 carrier gas Substances 0.000 claims description 22.238000004458 analytical method Methods 0.000 claims description 56.

239000007789 gas Substances 0.000 claims abstract description 52.210000002381 Plasma Anatomy 0.000 claims abstract description 237.238000004949 mass spectrometry Methods 0.000 title abstract description 10.230000003287 optical Effects 0.000 title claims description 23.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US55005204P priority Critical Application filed by Vassili Karanassios filed Critical Vassili Karanassios Priority to US11/072,330 priority patent/US7460225B2/en Publication of US20050195393A1 publication Critical patent/US20050195393A1/en Application granted granted Critical Publication of US7460225B2 publication Critical patent/US7460225B2/en Status Active legal-status Critical Current Adjusted expiration legal-status Critical Links ( en Inventor Vassili Karanassios Original Assignee Vassili Karanassios Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US11/072,330 Other versions US7460225B2

ELCAD CHLORINE EMISSION PDF

Google Patents Miniaturized source devices for optical and mass spectrometryР”Вownload PDF Info Publication number US20050195393A1 US20050195393A1 US11/072,330 US7233005A US2005195393A1 US 20050195393 A1 US20050195393 A1 US 20050195393A1 US 7233005 A US7233005 A US 7233005A US 2005195393 A1 US2005195393 A1 US 2005195393A1 Authority US United States Prior art keywords microplasma miniaturized plasma tube sample Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US20050195393A1 - Miniaturized source devices for optical and mass spectrometry It is believed that the approach demonstrated here suggests further improvements that will permit applications in a wide variety of aqueous solution analyses where low-flow rates and limited volumes are encountered.US20050195393A1 - Miniaturized source devices for optical and mass spectrometry Analytical response curves for Na and Hg in the various powering modes demonstrate good linearity, with the limits of detection for the analytes found to be on the order of РІв‚¬С4РІР‚вЂњ10 ppm for 5 РћСl injections equating to absolute detection limits of between 20 and 45 ng. Rotational temperature values increase slightly when helium is employed as a sheath gas as opposed to nitrogen, with the corresponding excitation temperatures increasing somewhat as well.

The respective powering modes both measures of temperature, with the OH rotational gas temperatures ranging from РІв‚¬С2100 to 3000 K and the Fe (I) excitation temperatures ranging from РІв‚¬С2400 to 3600 K. Sheath gas composition (N 2 or He) effects analyte emission responses as well as gas phase rotational and excitation temperatures.

A concentric sheath gas is employed to stabilize the solution delivery at low liquid flow rates. Four powering modes are investigated, including the effects of the individual modes on currentРІР‚вЂњvoltage characteristics, analyte emission response, and temporal broadening of flow injection profiles. Characterization of the liquid sampling-atmospheric pressure glow discharge optical emission spectroscopy (LS-APGD-OES) source is described with regards to applications in low-flow separations such as capillary liquid chromatography and electrophoresis.

Elcad chlorine emission