Simultaneous determination of aluminum, copper, iron and zinc in Oscillatoria, Juncus littoralis tissues and wetland water samples by ultrasound-assisted emulsification-microextraction combined with ICP-OES

Synthesis of cyanoaminopyridyl enaminoates for their fluorescent “turn off” response towards Fe(iii) ions

“…Therefore it is pertinent to say that the development of selective and sensitive methods and probes for tracking the iron (Fe 3+ ) levels in biological systems as well as environmental samples is of utmost importance. There are several conventional techniques for the detection of iron, like inductively coupled plasma mass spectrometry (ICP-MS), 10,11 flow injection analysis (FIA), 12,13 inductively coupled plasma-optical emission spectrometry (ICP-OES), 14,15 atomic absorption spectrometry (AAS), 16,17 voltammetry, [18][19][20][21] and ion pair chromatography. 22 But these techniques suffer from many limitations, like low selectivity, expensive instrumentation, highly skilled operator requirement, and complicated and time consuming procedures, thereby making them inadaptable for on-site determination.…”

Determination of trace amounts of iron by a simple fluorescence quenching method

“…The limited availability of Fe in soil for plants may cause the typical yellowing of young leaves that results in a reduction of photosynthetic activity and biomass production with great damage to agricultural activities. synchrotron micro X-ray uorescence, 2 spectrophotometry, 5,6 ame atomic absorption spectrometry (FAAS), 7,8 graphite furnace atomic absorption spectrometry (GFAAS), 9 photometry, 10 colorimetry, 11 high performance liquid chromatography (HPLC) 12 , inductively coupled plasma optical emission spectrometry (ICP-OES) 13 and electrochemical methods, 14,15 have been reported for the determination of iron. High levels of iron can change the odor, taste and colour of water and damage water equipment.…”

“…4 Several determination methods, e.g. synchrotron micro X-ray uorescence, 2 spectrophotometry, 5,6 ame atomic absorption spectrometry (FAAS), 7,8 graphite furnace atomic absorption spectrometry (GFAAS), 9 photometry, 10 colorimetry, 11 high performance liquid chromatography (HPLC) 12 , inductively coupled plasma optical emission spectrometry (ICP-OES) 13 and electrochemical methods, 14,15 have been reported for the determination of iron. In comparison with these methods, uorescence approaches have gained greater attention due to their simple equipment, rapid response, high sensitivity and easy operation.…”