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Flow injection system using a liquid waveguide capillary cell for the determina...

Spectrophotometric sensor system based on a liquid waveguide capillary cell for...

An analytical procedure for the spectrophotometric determination of titanium at trace levels was developed. The procedure involves the use of a multipumping flow system (MPFS) coupled with a liquid waveguide capillary cell (LWCC) with 1.0 m path length, 550 mm i.d. and 250 mL internal volume, which enabled to enhance the sensitivity of the determination and thus avoid complex and timeconsuming preconcentration ...

Spectrophotometric determination of zinc and copper in a multisyringe injection...

This work exploits a multisyringe injection analysis (MSFIA) system coupled with a long liquid waveguide capillary cell for the spectrophotometric determination of zinc and copper in waters. A liquid waveguide capillary cell (1.0mpathlength, 550mmi.d. and 250mL internal volume) was used to enhance the sensitivity of the detection. The determination for both ions is based on a colorimetric reaction with zincon a...

Spectrophotometric assay in a MSFIA system using a liquid waveguide capillary c...

Sistema de fluxo com célula de percurso óptico longo para a determinação de fer...

Determination of zinc in natural waters using a multisyringe flow injection ana...

Sequential injection trace determination of iron in natural waters using a long...

We developed a sequential injection analysis (SIA) method for the determination of iron in coastal, ground, and surface fresh waters using two different reagents (ferrozine and 1,10-phenathroline). The methodology uses a double-line SIA system to improve mixing conditions between sample and reagent solutions. A liquid waveguide capillary cell (LWCC) with 1.0 m pathlength, 550 μm i.d., and 250 μL internal volume...

Determination of zinc in natural waters using a multisyringe flow injection ana...

A multi-syringe flow injection system for the spectrophotometric determination ...

A method integrating a long waveguide capillary cell with a preconcentration resin in a multi-syringe flow injection analysis (MSFIA) system for iron determination in waters was developed. The determination of iron is based on a colorimetric reaction and two reagents were tested, ferrozine and ammonium thiocyanate. A liquid waveguide capillary cell (1.0 m pathlength, 550 μm i.d. and 250 μL internal volume) with...

A multi-syringe flow injection system using a long liquid waveguide capillary f...