Development of sensitive determination method for platinum in geological materials by carbon slurry sampling graphite furnace atomic absorption spectrometry

The enrichment of Pt(iv) ions on Dowex-1X8 and Purolite S-920 ion exchangers from aqueous solutions and their determination using slurry sampling and direct solid sampling graphite furnace atomic absorption spectrometry techniques

“…coprecipitation, 7 solid-phase extraction, 8 liquid-liquid extraction, 9 and cloud point extraction. 10 Different sorbents such as ion imprinted polymers, 11 active carbon, 12 carbon nanotubes, 13 modied silica gel, 2 and cotton bers/chitosans 14 have been used for the preconcentration of Pt(IV) ions from various media. A widely used preconcentration technique is the sorption of trace elements on ion exchangers.…”

Glutathione-directed synthesis of luminescent Ag2S nanoclusters as nanosensors for copper(ii) ions and temperature

“…3 Due to the widespread use of copper compounds in agriculture and industry together with its difficulty in biological detoxication, copper contamination and its potential toxicity on human being are challenging problems throughout the world. 4 Currently, several analytical methods have been employed for copper determination, such as atomic absorption spectrometry (AAS), 5 inductively coupled plasma atomic emission spectrometry (ICP-AES), 6 inductively coupled plasma mass spectrometry (ICP-MS). 7 These methods oen require expensive, complicated instrumentation and time-consuming, which hampers their practical application for in-eld measurement.…”

Au nanoclusters/porous silica particles nanocomposites as fluorescence enhanced sensors for sensing and mapping of copper(II) in cells

“…Ever-increasing importance in Cu 2+ demand more conveniently and reliable sensing techniques [9][10][11][12]. To date, there are several techniques and methods used to detect the presence of Cu 2+ in aqueous media, including inductively coupled plasma atomic emission spectrometry [13], inductively coupled plasma mass spectrometry [14], atomic absorption spectroscopy [15] and ion chromatography [16]. These typical methods usually require expensive instruments, complicated operation and are time-consuming.…”