Internal-standardization in flame analyses using a vidicon spectrometer

Howell, N. G.; Ganjei, J. D.; Morrison, George H.

doi:10.1021/ac60366a021

Cited by 19 publications

(12 citation statements)

References 22 publications

(35 reference statements)

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“…Our previous procedures for serum analysis in the manual mode involved calibration of the system using serum reference materials directly (6), and aqueous standards together with internal standard measurements (8) to eliminate matrix effects. Excellent results were obtained; however, in this study, it was decided to use a more convenient dilution technique permitting the use of aqueous calibration standards.…”

Section: Resultsmentioning

confidence: 99%

“…This system is similar to the one used in previous studies (6, 8 ) , except a "mixing chamber" which consisted of a 9-inch length of 0.062-inch diameter polyethylene tubing, was spliced into the lead-in capillary tube. Also, the injection port was fabricated from Teflon The flame source signal is detected with a uv sensitized silicon target vidicon tube fixed a t the focal plane of the polychromator.…”

Section: Instrumentalmentioning

confidence: 99%

“…Recent research in our laboratory has involved the development and evaluation of one such system, the vidicon flame spectrometer (5)(6)(7)(8). This work has involved the use of a vidicon tube coupled to an optical multichannel analyzer (OMA) operated in a manual mode for data acquisition, storage, and readout.…”

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confidence: 99%

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Multielement atomic spectrometry with a computerized vidicon detector

Ganjei¹,

Howell²,

Roth³

et al. 1976

Anal. Chem.

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A computerized vidicon flame spectrometer is described along with Its application to a simultaneous determination of four serum electrolytes. Data acquisition, transfer, storage, and manipulation have been greatly improved by the computer addition. Operator input has been minimized while the programming has incorporated such features as automatic least-squares polynomial curve fitting, "spectral stripplng", background corrected peak signal measurements, and internal standard corrections.

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Section: Resultsmentioning

confidence: 99%

Section: Instrumentalmentioning

confidence: 99%

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Multielement atomic spectrometry with a computerized vidicon detector

Ganjei¹,

Howell²,

Roth³

et al. 1976

Anal. Chem.

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“…One-dimensional systems are based on a window concept (5), resulting in a compromise between resolution and wavelength coverage. Under certain favorable circumstances (6)(7)(8), widely spaced spectral lines may sometimes be monitored without unduly increasing the size of the wavelength window (and thereby suffering a loss in resolution) by monitoring spectral lines in overlapping orders. This approach, however, is not successful in every case, and the limited wavelength window obtained by mounting an image detector at the focal plane of a conventional spectrograph remains the most serious problem associated with this optical arrangement (4).…”

mentioning

confidence: 99%

Multiple entrance slit vidicon spectrometer for simultaneous multielement analysis

Busch¹,

Malloy²,

Talmi³

1979

Anal. Chem.

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“…State-of-the-art multichannel detectors such as vidicons, photodiode arrays, charge coupled devices, etc. are being evaluated for their present spectroscopic capabilities (7)(8)(9)(10)(11), although it is recognized that significant improvements will be forthcoming in this rapidly developing field. Previous reports from this and other laboratories have detailed the development and characterization of such systems employing silicon vidicon tubes for spectroscopic measurements (7)(8)(9)(10)(12)(13)(14)(15)(16)(17)(18). These research efforts have shown that the combination of simultaneous multiwavelength detection and digital multichannel signal processing provides numerous analytical benefits.…”

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confidence: 99%

Evaluation of silicon vidicon detector sensitivity for atomic spectrometry applications

Howell¹,

Morrison²

1977

Anal. Chem.

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BurnerVarían Techtron 5-cm high solids slot burner for nitrous oxide-acetylene. External Plano-convex Supracil lens 5-cm diameter with 12.5-cm focal length stopped down to 2.6 cm. Polka dot beam splitter Optics 1 inch by 1.5 inches, Instrumentation Laboratories. Slits Jarrell-Ash Model 82-092 0-400µ dual unilateral entrance and exit slit assembly with straight jaws.Spectrometer Jarrell-Ash Model 82-020 0.5-m scanning Ebert Mount monochromator with Model 82-016 camera attachment and an 1180 grooves-per-millimeter grating blazed at 400 nm, providing a reciprocal linear dispersion of 1.6 nm/mm. Detectors Ultraviolet sensitized silicon vidicon tube assembly Model 1205 F, Princeton Applied Research Corp. Silicon Intensified Target vidicon tube assembly Model 1205D, with option-01 scintillator screen, Princeton Applied Research Corp. RCA 1P28 Photomultiplier tube, Radio Corporation of America Power supply High voltage dc supply, Model 412A, John Fluke Mfg. Co., Inc. Amplifier Keithley Model 417 High speed picoammeter, Keithley Instruments, Inc. OMA Optical Multichannel Analyzer Model 1205A, Princeton Applied Research Corp. Data Readout Tektronix Oscilloscope, Model 604 Monitor. Speedomax X/L 680 Dual Channel Strip Chart Recorder, Leeds and Northrup Co.Flow meters Brooks Full-view Rotameters calibrated for nitrous oxide and acetylene, Brooks Instrument Co. emission lines at 184.9, 253.6, 312.5, 365.0, 404.6, and 546.1 nm were sequentially monitored by both detection systems. Each spectral line was first observed on the vidicon tube. The intensity was adjusted, using a lens diaphragm and neutral density filters, to yield a real-time reading of 100 counts for the peak channel on the OMA. The entrance

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Internal-standardization in flame analyses using a vidicon spectrometer

Cited by 19 publications

References 22 publications

Multielement atomic spectrometry with a computerized vidicon detector

Multielement atomic spectrometry with a computerized vidicon detector

Multiple entrance slit vidicon spectrometer for simultaneous multielement analysis

Evaluation of silicon vidicon detector sensitivity for atomic spectrometry applications

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