Evaluation of a Direct Current Arc Charge Injection Device Spectrograph for Direct Analysis of Soils

1997 ◽  
Vol 12 (2) ◽  
pp. 247-254 ◽  
Author(s):  
CYNTHIA A. MAHAN
Keyword(s):  
Direct Current ◽  
Charge Injection ◽  
Direct Analysis ◽  
Injection Device

Advances in the Application of Array Detectors for Improved Chemical Analysis, Part II. Rapid Trace Metal Analysis of High Solids Wastewater and Sludge Using a Direct Current Plasma Source Equipped with an Echelle Spectrometer and a Charge-Injection Device Detector

2003 ◽  
Vol 56 (3) ◽  
pp. 133 ◽  
Author(s):  
Jeff Prevatt ◽  
M. Bonner Denton
Keyword(s):  
Trace Metals ◽  
Direct Current ◽  
Charge Injection ◽  
Plasma Source ◽  
High Solids ◽  
Injection Device ◽  
Analytical Technique ◽  
Array Detectors ◽  
Direct Current Plasma ◽  
Echelle Spectrometer

A direct current plasma (DCP) source, equipped with an echelle spectrometer and charge-injection device (CID) detector, was employed for the analysis of trace metals in municipal sludge and wastewater containing high solids. The use of DCP as a plasma source has largely vanished in the past decade due to the popularity of inductively coupled plasma. Resurrecting this robust plasma source and coupling it to a state-of-the-art echelle spectrometer provides for an extremely forgiving analytical technique capable of analysing trace metals rapidly, even in complex high-solid matrices. Instrument performance is further enhanced as the echelle/CID spectrometer provides a simultaneous multi-element fingerprint of contaminants in the waste. The improved design offers increased sensitivity in the far ultraviolet, with overall wavelength coverage from 175 to 800 nm. Furthermore, multi-element analysis is obtained quickly with minimal or no sample preparation, making this the fastest screening technique available.

Gamma induced dose fluctuations in a charge injection device

1988 ◽  
Vol 35 (6) ◽  
pp. 1302-1306 ◽  
Author(s):  
E.A. Burke ◽  
G.E. Bender ◽  
J.K. Pimbley ◽  
G.P. Summers ◽  
C.J. Dale ◽  
...  
Keyword(s):  
Charge Injection ◽  
Injection Device ◽  
A Charge

scholarly journals Extreme Contrast Ratio Imaging of Sirius with a Charge Injection Device

2016 ◽  
Vol 128 (960) ◽  
pp. 025001 ◽  
Author(s):  
D. Batcheldor ◽  
R. Foadi ◽  
C. Bahr ◽  
J. Jenne ◽  
Z. Ninkov ◽  
...  
Keyword(s):  
Contrast Ratio ◽  
Charge Injection ◽  
Injection Device ◽  
Ratio Imaging ◽  
A Charge

Characterization of a CID-38 charge injection device

1996 ◽  
Author(s):  
Brian S. Backer ◽  
Zoran Ninkov ◽  
Massimiliano Corba
Keyword(s):  
Charge Injection ◽  
Injection Device

Selectable one-to-four-port, very high speed 512 x 512 charge-injection device

1991 ◽  
Author(s):  
Jeffrey J. Zarnowski ◽  
Bryn Williams ◽  
Matthew A. Pace ◽  
Michael Joyner ◽  
Joseph Carbone ◽  
...  
Keyword(s):  
High Speed ◽  
Charge Injection ◽  
Injection Device ◽  
Very High

scholarly journals Inductively Coupled Plasma Compared with Direct Current Arc Spectrometry for Analysis of Minor Elements in Aluminium Baths

2004 ◽  
Vol 87 (5) ◽  
pp. 1218-1223 ◽  
Author(s):  
Raquel Antolín ◽  
Gregorio Borge ◽  
Tomás Posada ◽  
Juan C Raposo ◽  
Iker Seara ◽  
...  
Keyword(s):  
Direct Current ◽  
Inductively Coupled Plasma ◽  
Reference Method ◽  
Optical Emission ◽  
Direct Analysis ◽  
Emission Spectrometry ◽  
Icp Oes ◽  
Solid Samples ◽  
Inductively Coupled ◽  
Minor Elements

Abstract A validation study was carried out in order to evaluate the efficiency of inductively coupled plasma-optical emission spectrometry (ICP-OES) for the analysis of minor elements (manganese, chromium, copper, iron, and titanium) in aluminium alloys. Aluminium casting samples were obtained by adding compressed powder compacts of each alloying element and aluminium (minitablets) to aluminum baths in a laboratory crucible furnace. Digestion of solid samples was performed using concentrated HCl and H2O2 35% (v/v) previous to analysis by ICP-OES without any matrix separation. This solution-based method was validated considering direct current arc spectrometry as the reference method based on direct analysis without any pretreatment of the solid samples considered. Univariate statistical procedures were carried out, for which precision <3% and trueness of the analytical results were taken into account.

Evaluation of the Potential of a Charge-Injection Device for DNA Sequencing by Multiplexed Capillary Electrophoresis

1995 ◽  
Vol 49 (6) ◽  
pp. 825-833 ◽  
Author(s):  
Qingbo Li ◽  
Edward S. Yeung
Keyword(s):  
Capillary Electrophoresis ◽  
Dna Sequencing ◽  
Fluorescence Detection ◽  
Charge Injection ◽  
Laser Induced Fluorescence ◽  
Array Detector ◽  
Injection Device ◽  
Laser Induced Fluorescence Detection ◽  
Array Detectors ◽  
Multiplexed Capillary Electrophoresis

Despite the rapid growth in the use of imaging detectors in spectroscopy, the charge-injection device (CID) has unique features that have not been fully exploited. The advantages of the CID as a two-dimensional array detector for laser-induced fluorescence detection in highly multiplexed capillary electrophoresis are evaluated. In such a system, the CID maintains both high sensitivity and high sampling rate, which are usually difficult to achieve simultaneously with other array detectors. Applying the electronic windowing function significantly improves the scan rate and greatly reduces the volume of data generated. With 1-s exposure time and 488-nm excitation, the detection limit of the system is 10−12 M fluorescein with the device cryogenically cooled and 10−11 M fluorescein at ambient temperature. The low dark current of the CID imager allows operation at room temperature without significantly affecting sensitivity when combined with moderate laser powers. We demonstrate that the CID is well suited for high-speed, high-throughput DNA sequencing based on multiplexed capillary electrophoresis with on-column laser-induced fluorescence detection.

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