Electro-spinning/netting: A strategy for the fabrication of three-dimensional polymer nano-fiber/nets

X Wang, B Ding, G Sun, M Wang, J Yu - Progress in materials science, 2013 - Elsevier
Since 2006, a rapid development has been achieved in a subject area, so called electro-
spinning/netting (ESN), which comprises the conventional electrospinning process and a …

Miniaturized preconcentration methods based on liquid–liquid extraction and their application in inorganic ultratrace analysis and speciation: A review

F Pena-Pereira, I Lavilla, C Bendicho - Spectrochimica Acta Part B: Atomic …, 2009 - Elsevier
Liquid–liquid extraction (LLE) is widely used as a pre-treatment technique for separation
and preconcentration of both organic and inorganic analytes from aqueous samples …

Sol–gel based sensor for selective formaldehyde determination

O Bunkoed, F Davis, P Kanatharana… - Analytica chimica …, 2010 - Elsevier
We report the development of transparent sol–gels with entrapped sensitive and selective
reagents for the detection of formaldehyde. The sampling method is based on the adsorption …

A facile and highly sensitive colorimetric sensor for the detection of formaldehyde based on electro-spinning/netting nano-fiber/nets

X Wang, Y Si, J Wang, B Ding, J Yu… - Sensors and Actuators B …, 2012 - Elsevier
A novel strategy for highly sensitive colorimetric detection of gaseous formaldehyde was
developed based on Methyl Yellow-impregnated electro-spinning/netting (ESN) nylon 6 …

Ion chromatography for rapid and sensitive determination of fluoride in milk after headspace single-drop microextraction with in situ generation of volatile hydrogen …

H Yiping, W Caiyun - Analytica chimica acta, 2010 - Elsevier
In this article, we report a new method that involves headspace single-drop microextraction
and ion chromatography for the preconcentration and determination of fluoride. The method …

An overview of liquid phase microextraction approaches combined with UV–Vis spectrophotometry

MDM Abadi, N Ashraf, M Chamsaz, F Shemirani - Talanta, 2012 - Elsevier
Ultraviolet and visible spectrophotometer has become a popular analytical instrument in the
modern day laboratories. However, the low concentrations of many analytes in samples …

An optical sensor for the sensitive determination of formaldehyde gas based on chromotropic acid and 4-aminoazobenzene immobilized in a hydrophilic membrane

MD Fernández-Ramos, A Moraga-Cabezas… - Analyst, 2023 - pubs.rsc.org
Formaldehyde is a common contaminant in occupational and environmental atmospheres,
prolonged exposure leads to health risks, and its determination is necessary to protect …

Smartphone-based microfluidic colorimetric sensor for gaseous formaldehyde determination with high sensitivity and selectivity

XL Guo, Y Chen, HL Jiang, XB Qiu, DL Yu - Sensors, 2018 - mdpi.com
Formaldehyde is one of the most dangerous air pollutants, which can cause sick building
syndrome. Thus, it is very crucial to precisely determine formaldehyde with a low cost and …

Amônia (NH3) atmosférica: fontes, transformação, sorvedouros e métodos de análise

EP Felix, AA Cardoso - Química Nova, 2004 - SciELO Brasil
Ammonia is the most common alkaline gas of the atmosphere, being important in the
neutralization of various processes that occur in the atmosphere. Its main sources of …

Microfabricated formaldehyde gas sensors

J Flueckiger, FK Ko, KC Cheung - Sensors, 2009 - mdpi.com
Formaldehyde is a volatile organic compound that is widely used in textiles, paper, wood
composites, and household materials. Formaldehyde will continuously outgas from …