Versatile automatic development system for flow injection analysis

Betteridge, D.; Sly, T. J.; Wade, Adrian P.; Porter, Derrick G.

doi:10.1021/ac00124a031

Cited by 23 publications

(6 citation statements)

References 24 publications

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“…The development of this detector was applied to flow injection analysis (FIA) [ 86 , 87 ]. Phototransistors typically provide 1.5-2 orders of magnitude greater current output than photodiodes albeit with a higher cost [ 11 , 88 ].…”

Section: Detectors Commonly Employed With Ledsmentioning

confidence: 99%

Absorbance Based Light Emitting Diode Optical Sensors and Sensing Devices

O'Toole

Diamond

2008

Sensors

167

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The ever increasing demand for in situ monitoring of health, environment and security has created a need for reliable, miniaturised sensing devices. To achieve this, appropriate analytical devices are required that possess operating characteristics of reliability, low power consumption, low cost, autonomous operation capability and compatibility with wireless communications systems. The use of light emitting diodes (LEDs) as light sources is one strategy, which has been successfully applied in chemical sensing. This paper summarises the development and advancement of LED based chemical sensors and sensing devices in terms of their configuration and application, with the focus on transmittance and reflectance absorptiometric measurements.

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Section: Detectors Commonly Employed With Ledsmentioning

confidence: 99%

Absorbance Based Light Emitting Diode Optical Sensors and Sensing Devices

O'Toole

Diamond

2008

Sensors

167

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“…In their approach previous short column experiments were performed to collect data for the search of the optimal experimental parameters. Betteridge et al [23] optimized automatic analytical methods with simplex technique for ®nding the right working parameters for FIA apparatus. Polynomial working curves were ®tted to individual samples with simplex search in the work of Plepmeier and Peterson [24].…”

Section: Introductionmentioning

confidence: 99%

Automatic Target Location Strategy-A Novel Approach in Scanning Electrochemical Microscopy

Kovács

Csóka

Nagy³

et al. 1999

Electroanalysis

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In this article a recently constructed scanning electrochemical microscope with an original automatic target location facility is described and its operation is demonstrated on different targets. The measuring tip positioning device is based on stepper motor driven linear modules with 75 nm linear travel resolution. The home-built electronic unit and the Windows 95 compatible measuring and image-forming program furnish the microscope to operate in both amperometric and potentiometric modes. A novel, simplex algorithm based automatic target location program was developed to substitute the tedious and lengthy manual tip positioning. In this article different strategies are described and the most important results of this investigation are summarized.

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“…Simplex optimization (14)(15)(16) and automated response surface mapping (13,17) have been implemented on these systems. The former provides a rapid means to find the optimum conditions for analvsis.…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric determination of peroxydisulphate with o-dianisidine by flow injection

Shiundu¹,

Wade²,

Jonnalagadda³

1990

Can. J. Chem.

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Precise and accurate knowledge of peroxydisulfate ion concentration is critical in industrial polymer production, where it is extensively used as an activator. Its ability to oxidize in either acidic, neutral, or alkali media also makes it widely applicable in many other areas of chemistry.In this paper we present an optimized spectrophotometric flow injection method for determination of peroxydisulfate. The analyte oxidizes o-dianisidine to form a stable product which has a convenient absorbance maximum at 450 nm. This provides a simple and sensitive alternative to present methods which are more costly, tedious, or complex.

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Versatile automatic development system for flow injection analysis

Cited by 23 publications

References 24 publications

Absorbance Based Light Emitting Diode Optical Sensors and Sensing Devices

Absorbance Based Light Emitting Diode Optical Sensors and Sensing Devices

Automatic Target Location Strategy-A Novel Approach in Scanning Electrochemical Microscopy

Spectrophotometric determination of peroxydisulphate with o-dianisidine by flow injection

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