For best results dilute the stock single-element boron standard solution 1.000 gram per litter (CPA No C005100) to levels appropriate to the operating range of the instrument using. The working solution must be freshly prepared.

A calibration blank is used to establish the analytical calibration curve; the laboratory blank is used to assess possible contamination from the sample preparation procedure and to assess spectral background.

Calibration blank—Consists of 1% (v/v) nitric acid in high-purity analytical water.

 

q       Recomended Parameters (Varian instruments)

 

Lamp Current                  20 mA

Spectral Bandwidth         0.2 nm

Wavelenght                     249.8 nm

Maximum Ash Temp.      1000 ^oC (Nitric acid medium)

 

Typical response (Argon): 10 μl of 3.5 ppm B (+30 μl Ba 1 g/l CPA NoC006100) solution gives about 0.1 Abs.