Analytical
Procedures

Analytical procedures for voltammetric analysis

The reported analytical procedures, if not differently specified, can be applied to limpid solutions, not containing oxidising or reducing substances, suspended solids, organic substances and colloids. Samples have so to be treated to fulfil the above conditions.

Also, final solutions have to be in 1 – 10 pH range avoiding damages of the capillary.

Prepare samples, standard solutions and supporting electrolytes using ultra pure water (reagent grade I) and clean chemicals for trace analysis.

Finally, perform a blank analysis when “environmental pollutant”, like lead, zinc, copper, iron and chlorides are investigated.

Elements and Compounds Description PDF file
Most common supporting electrolyte Ita Eng
Aluminium Method: Calcon in 0.1 M acetate buffer, pH 4.7. Differential Pulse Voltammetry (DPV/a)
Setting -> Aluminium.met
Ita Eng
Antimony Differential Pulse Stripping Voltammetry (DPS/a)
Setting1 –> Antimony-no-Cu.met
Setting2 –> Antimony-with-Cu.met
Ita Eng
Arsenic (total) Differential Pulse Stripping Voltammetry (DPS/a). Electrode: Gold film on glassy carbon electrode
Setting –> Arsenic-total.met
Ita Eng
Ascorbic acid in fruit juice Differential Pulse Voltammetry (DPV/a)
Setting –> Ascorbic-Acid.met
Ita Eng
Bismuth Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Bismuth.met
Ita Eng
Boric acid in nickel plating bath Differential Pulse Voltammetry (DPV/a)
Setting –> Boric-acid-in-nickel-sulphamate-bath.met
Ita Eng
Cadmium Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Cadmium.met
Ita Eng
Chlorides Differential Pulse Voltammetry (DPV/a)
Setting –> Chlorides.met
Ita Eng
Chromium (VI and total) Method: DTPA in 0.2 M acetate buffer, pH 6.2. Differential Pulse Adsorptive Stripping Voltammetry (DPS/a)
Setting –> Chromium_VI_and_total. met
Ita Eng
Cobalt Method: Dimetilglioxime in 0.1 M tartrate buffer, pH 9. Differential Pulse Voltammetry (DPV/a)
Setting –> Cobalt.met
Ita Eng
Copper Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Copper.met
Ita Eng
Cyanides Differential Pulse Voltammetry (DPV/a)
Setting –> Cyanides.met
Ita Eng
Formaldehyde Differential Pulse Voltammetry (DPV/a)
Setting –> Formaldehyde.met
Ita Eng
Iron Method: Triethanolamine – Sodium hydroxide buffer. Differential Pulse Voltammetry (DPV/a).
Setting –> Iron-TEA.met
Ita Eng
Lead Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Lead.met
Ita Eng
Manganese Differential Pulse Stripping Voltammetry (DPS/a) . Electrode: Glassy carbon
Setting –> Manganese.met
Ita Eng
Mercury Square Wave Stripping Voltametry (SQS). Electrode: rotating gold electrode (2 mm diameter)
Setting –> Mercury_Au_RDE.met
Ita Eng
Molybdenum Method: Mandelic acid in H2SO4, pH 3-3.5 Differential Pulse Voltammetry (DPV/a)
Setting –> Molybdenum.met
Ita Eng
Nickel Method: Dimetilglioxime in 0.1 M tartrate buffer, pH 9. Differential Pulse Voltammetry (DPV/a)
Setting –> Nickel.met
Ita Eng
Nitrites Differential Pulse Voltammetry (DPV/a)
Setting –> Nitrites.met
Ita Eng
Palladium Method: Dimetilglioxime in 0.1 M tartrate buffer, pH 5.15. Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Palladium.met
Ita Eng
Platinum Differential Pulse Voltammetry (DPV/a)
Setting –> Platinum.met
Ita Eng
Saccharin in nickel plating bath Differential Pulse Voltammetry (DPV/a)
Setting –> Saccharin-Ni-bath.met
Ita Eng
Selenium Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Selenium.met
Ita Eng
Silver Differential Pulse Stripping Voltammetry (DPS/a). Electrode: Glassy carbon
Setting –> Silver.met
Ita Eng
Sulphides Differential Pulse Voltammetry (DPV/a)
Setting –> Sulphides.met
Ita Eng
Sulphur dioxide (sulphites) Differential Pulse Voltammetry (DPV/a)
Setting –> Sulphites-SO2.met
Ita Eng
Sulphur in gasoline and petroleum Differential Pulse Voltammetry (DPV/a)
Setting –> Sulphur.met
Ita Eng
Thallium Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Thallium.met
Ita
Eng
Thiourea in nickel and copper plating bath Differential Pulse Voltammetry (DPV/a)
Setting –> Thiourea-Ni-Cu-bath.met
Ita Eng
Tin Method: tropolone in oxalic – hydrochloric acid. Differential Pulse Voltammetry (DPV/a)
Setting –> Tin.met
Ita Eng
Total Aldehydes Method: Hydrazine in 0.1 M citrate buffer, pH 6.5. Differential Pulse Voltammetry (DPV/a)
Setting –> Aldehydes_total.met
Ita Eng
Vanadium Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Vanadium.met
Ita Eng
Zinc (high levels) Differential Pulse Voltammetry (DPV/a)
Setting –> Zinc-high.met
Ita Eng
Zinc (low levels) Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Zinc-low.met
Ita Eng

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