Solid-state microprocessor-controlled detector for doublet peak measurements in flow-injection analysis

Carroll, Mary K.; Conboy, Michael J.; Murfin, A S; Tyson, Julian F.

doi:10.1016/0003-2670(94)80344-7

Analytica Chimica Acta

1994

DOI: 10.1016/0003-2670(94)80344-7

|View full text |Cite

Solid-state microprocessor-controlled detector for doublet peak measurements in flow-injection analysis

Mary K. Carroll¹,

Michael J. Conboy²,

A S Murfin³

et al.

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

1997

2009

Publication Types

Select...

Article5

Relationship

Self Cite1

Independent4

Authors

Journals

Cited by 5 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The flow cell is constructed of a piece of square-cross-section quartz capillary tubing, and is similar in design to those used previously for transmission measurements. 4,5 The instrument is compact, economical and solid-state. With the increased sensitivity due to fluorescence detection with the diode-laser-based detector, the 'Methylene Blue Method' can be performed on-line under less corrosive, albeit sub-optimum, reaction conditions, with 1-2 mg l 21 detection limits.…”

mentioning

confidence: 99%

On-line Determination of Sulfide by the ‘Methylene Blue Method’ With Diode-laser-based Fluorescence Detection

Spaziani¹,

Tinani²,

Carroll³

1997

Analyst

Self Cite

View full text Add to dashboard Cite

The application of an inexpensive, compact, solid-state, fluorescence-based detector for flow injection analysis to the determination of sulfide by the 'Methylene Blue Method', viz., production of Methylene Blue (MB) via the oxidative coupling of sulfide with N,N-dimethyl-pphenylenediamine (DMPD) in the presence of iron(III), is described. The use of fluorescence-based detection allows the reaction to be performed on-line under less corrosive, albeit sub-optimum, reaction conditions. The detector uses a 670 nm diode laser as the excitation source and inexpensive photodiodes as detector elements; a color filter (used to block scattered laser light) is the only other optical component of the detector. The fluorescence signal resulting from the MB formed on-line is linear over the range 0.75-15.0 mg l 21 injected sulfide, with a limit of detection of 0.08 mg l 21 injected sulfide when 9.0 M H 2 SO 4 is used in the DMPD carrier stream, and 1-2 mg l 21 when less acidic carrier streams are employed. Use of this method for analysis of sulfide unknowns in aqueous solution and in a simulated waste water matrix demonstrates that unknown sulfide samples can be analysed reproducibly.

show abstract

mentioning

confidence: 99%

On-line Determination of Sulfide by the ‘Methylene Blue Method’ With Diode-laser-based Fluorescence Detection

Spaziani¹,

Tinani²,

Carroll³

1997

Analyst

Self Cite

View full text Add to dashboard Cite

show abstract

A SoC and LED based reconfigurable subminiature spectrometer for hand-held measurement applications

Yang¹,

Wei²,

Xianghui³

et al. 2008

Measurement

View full text Add to dashboard Cite

LED-based sensing system for biomedical gas monitoring: Design and experimentation of a photoacoustic chamber

Lay-Ekuakille

Vendramin

Trotta

2009

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

hi@scite.ai

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Solid-state microprocessor-controlled detector for doublet peak measurements in flow-injection analysis

Cited by 5 publications

References 9 publications

On-line Determination of Sulfide by the ‘Methylene Blue Method’ With Diode-laser-based Fluorescence Detection

On-line Determination of Sulfide by the ‘Methylene Blue Method’ With Diode-laser-based Fluorescence Detection

A SoC and LED based reconfigurable subminiature spectrometer for hand-held measurement applications

LED-based sensing system for biomedical gas monitoring: Design and experimentation of a photoacoustic chamber

Contact Info

Product

Resources

About