A Flow-Injection Chemiluminescence Determination of Formaldehyde in Textiles

Abstract

In the multitude of experiments on determination of formaldehyde, no experiment has made any attempt to determine the exact amount of formaldehyde in textile materials by flow-injection chemiluminescence. In this article, flow-injection chemiluminescence analysis is used effectively for the selective determination of formaldehyde in textiles. The reaction is based upon the modified Trautz-Shorigin reaction, in which formaldehyde and gallic acid are oxidized with aqueous alkaline hydrogen peroxide, producing relatively strong chemiluminescence. The effects of reagent concentrations, temperature, pH, flow rates, mixing coil length, and flow sequences on the chemiluminescence intensity were studied. Under the optimized experimental conditions, formaldehyde in an aqueous solution was determined over the concentration range from 0.20-1.0 Â 10 À7 M with a linear calibration graph; the detection limit (LOD; S=N ¼ 3) was 5 Â 10 À8 M. The relative standard deviation of 12 replicate measurements of 2 Â 10 À5 M formaldehyde was 1.1%. This flow-injection analysis system proved able to analyze up to 50 samples=h. The effects of various interferences possibly present in the textile samples were investigated. Most cations and anions, as well as organic compounds, do not interfere with the determination of formaldehyde in textile samples. The proposed method is very simple, rapid, inexpensive, sensitive, and can be applied to a variety of textile samples at low concentration levels without any enrichment treatment. This method was applied to the determination of formaldehyde in different textile samples and compared with the state standard method used in China.

Determination of formaldehyde in textile dye and auxiliary chemicals with headspace gas chromatography-flame ionization detector

“…Formaldehyde has been used in many different areas, like the production of wood products such as medium-density fiberboard (MDF) and chipboard, which are mainly used in the construction sector, textile industry [ 1 ], cosmetics [ 2 ], household cleaning products, and the automotive industry [ 3 ]. Also, it is mostly used in the production of urea-formaldehyde, phenol-formaldehyde, and melamine-formaldehyde resins.…”

A screening method for detecting formaldehyde emitted from textile products

“…Formaldehyde has been used for many years in the textile industry [1]. Textile products are commonly processed to improve characteristics such as wrinkle resistance and shape retention, using chemicals that often contain formaldehyde, for example urea-formaldehyde resin.…”

“…bioindicative measuring method [9], liquid-phase microextraction with in-drop derivatization combined with microvolume fluorospectrometry [10], dynamic ultrasound-assisted extraction coupled on-line with solid support derivatization and high-performance liquid chromatography [11], and flow-injection chemiluminescence [1]). These methods can measure formaldehyde with high sensitivity and reproducibility.…”

A simple and sensitive flow injection method based on the catalytic activity of CdS quantum dots in an acidic permanganate chemiluminescence system for determination of formaldehyde in water and wastewater

“…8 Regarding comprehensive literature surveys, some analytical methods have been implemented for the determination of HCHO in different real samples, including high performance liquid chromatography (HPLC), 2,9-12 gas chromatography-mass spectrometry (GC-MS), 4 spectrophotometry, 7,13-15 fluorimetery, [16][17][18][19] and chemiluminescence (CL). 6, [20][21][22][23] Among the above stated approaches, CL which has stirred extraordinary attention is considered as a desirable class of detection procedure proposing high sensitivity, high through-put, wide dynamic range and a low detection limit for many categories of substances. Moreover, the CL procedure provides superiority such as low-cost, rapidity, and no excitation light necessity.…”