Determination of Boron Using Headspace Liquid Phase Micro-Sublimation Coupled with Inductively Coupled Plasma Optical Emission Spectrometry

Abstract

Trace boron in water and plant samples was preconcentrated by a novel headspace liquid phase micro-sublimation method, followed by determination by inductively coupled plasma optical emission spectroscopy. Sodium hydroxide solution was used as the absorption solvent during the preconcentration step. The type and volume of absorption solvent, absorption time and temperature, and pH of the absorption solution and sample solution were optimized for the extraction. The linear range was from 0.1 to 80 lg/mL, with a relative standard deviation of 7.4%. The limit of detection based on a signal-to-noise ratio of three was 0.008 lg/mL. Under the optimized conditions, real water samples and plant samples were analyzed. The results showed this method can be applied for the determination of boron in environmental samples.

A Rapid Method for Determining Boron Concentration (ID‐ICP‐MS) and δ11B (MC‐ICP‐MS) in Vegetation Samples after Microwave Digestion and Cation Exchange Chemical Purification

“…So far, several techniques of B extraction from plant materials have been published including acid digestion (Sun et al . ), dry ashing (Rosner et al . , Vogl et al .…”

“…So far, several techniques of B extraction from plant materials have been published including acid digestion (Sun et al 2013), dry ashing , microwave digestion (Vanderpool and Johnson 1992, Wieser et al 2001, Serra et al 2005, Coetzee et al 2011 or alkali fusion (Cividini et al 2010). Although all these techniques have proved their efficiency, they are either time-or material consuming (e.g., acid digestion).…”

Atomic spectrometry update: review of advances in atomic spectrometry and related techniques

“…Sun et al 47 reported a headspace, liquid-phase, microsublimation method for the determination of B by ICP-OES. In a simple procedure, 100 mL of NaOH absorption solvent was placed in the bottom of a 0.5 mL conical tube.…”