B DETERMINATION OF BORON BY ICP-OES

1 Solutions with boron compounds are nebulised into an argon plasma, where all components are vaporised. Boron compounds are dissociated and excitated, and then emit radiation of which the intensity Is measured at a wavelength of 249.678 nm. 

2 This determination may be carried out on extract 3.2 (extraction with HF - HCI). 

1 This procedure yields a standard curve that is linear up to at least 10 mgfL B. 

1 The reproducibility of determinations by this procedure should give, at reasonable control and thorough sample preparation, a coefficient of variation within 10 % + 10 mg/kg. 

5 Inductively coupled plasma optical emission spectrometer equipped with a polythene nebuliser. 

---