Analytical procedures for voltammetric analysis

The reported analytical procedures, if not differently specified, can be applied to limpid solutions, not containing oxydising 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 CompoundsDescriptionPDF file
Most common supporting electrolyteItaEng
AluminiumMethod: Calcon in 0.1 M acetate buffer, pH 4.7. Differential Pulse Voltammetry (DPV/a)
Setting --> Aluminium.met
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AntimonyDifferential Pulse Stripping Voltammetry (DPS/a)
Setting1 –> Antimony-no-Cu.met
Setting2 –> Antimony-with-Cu.met
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Arsenic (total)Differential Pulse Stripping Voltammetry (DPS/a). Electrode: Gold film on glassy carbon electrode
Setting –> Arsenic-total.met
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Ascorbic acid in fruit juiceDifferential Pulse Voltammetry (DPV/a)
Setting –> Ascorbic-Acid.met
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BismuthDifferential Pulse Stripping Voltammetry (DPS/a)
Setting –> Bismuth.met
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Boric acid in nickel plating bathDifferential Pulse Voltammetry (DPV/a)
Setting –> Boric-acid-in-nickel-sulphamate-bath.met
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CadmiumDifferential Pulse Stripping Voltammetry (DPS/a)
Setting –> Cadmium.met
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ChloridesDifferential Pulse Voltammetry (DPV/a)
Setting –> Chlorides.met
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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
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CobaltMethod: Dimetilglioxime in 0.1 M tartrate buffer, pH 9. Differential Pulse Voltammetry (DPV/a)
Setting –> Cobalt.met
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CopperDifferential Pulse Stripping Voltammetry (DPS/a)
Setting –> Copper.met
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CyanidesDifferential Pulse Voltammetry (DPV/a)
Setting –> Cyanides.met
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FormaldehydeDifferential Pulse Voltammetry (DPV/a)
Setting –> Formaldehyde.met
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IronMethod: Triethanolamine – Sodium hydroxide buffer. Differential Pulse Voltammetry (DPV/a).
Setting –> Iron-TEA.met
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LeadDifferential Pulse Stripping Voltammetry (DPS/a)
Setting –> Lead.met
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ManganeseDifferential Pulse Stripping Voltammetry (DPS/a) . Electrode: Glassy carbon
Setting –> Manganese.met
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MercurySquare Wave Stripping Voltametry (SQS). Electrode: rotating gold electrode (2 mm diameter)
Setting –> Mercury_Au_RDE.met
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MolybdenumMethod: Mandelic acid in H2SO4, pH 3-3.5 Differential Pulse Voltammetry (DPV/a)
Setting –> Molybdenum.met
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NickelMethod: Dimetilglioxime in 0.1 M tartrate buffer, pH 9. Differential Pulse Voltammetry (DPV/a)
Setting –> Nickel.met
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NitritesDifferential Pulse Voltammetry (DPV/a)
Setting –> Nitrites.met
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PalladiumMethod: Dimetilglioxime in 0.1 M tartrate buffer, pH 5.15. Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Palladium.met
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PlatinumDifferential Pulse Voltammetry (DPV/a)
Setting –> Platinum.met
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Saccharin in nickel plating bathDifferential Pulse Voltammetry (DPV/a)
Setting –> Saccharin-Ni-bath.met
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SeleniumDifferential Pulse Stripping Voltammetry (DPS/a)
Setting –> Selenium.met
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SilverDifferential Pulse Stripping Voltammetry (DPS/a). Electrode: Glassy carbon
Setting –> Silver.met
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SulphidesDifferential Pulse Voltammetry (DPV/a)
Setting –> Sulphides.met
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Sulphur dioxide (sulphites)Differential Pulse Voltammetry (DPV/a)
Setting –> Sulphites-SO2.met
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Sulphur in gasoline and petroleumDifferential Pulse Voltammetry (DPV/a)
Setting –> Sulphur.met
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ThalliumDifferential Pulse Stripping Voltammetry (DPS/a)
Setting –> Thallium.met
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Thiourea in nickel and copper plating bathDifferential Pulse Voltammetry (DPV/a)
Setting –> Thiourea-Ni-Cu-bath.met
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TinMethod: tropolone in oxalic – hydrochloric acid. Differential Pulse Voltammetry (DPV/a)
Setting –> Tin.met
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Total AldehydesMethod: Hydrazine in 0.1 M citrate buffer, pH 6.5. Differential Pulse Voltammetry (DPV/a)
Setting –> Aldehydes_total.met
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VanadiumDifferential Pulse Stripping Voltammetry (DPS/a)
Setting –> Vanadium.met
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Zinc (high levels)Differential Pulse Voltammetry (DPV/a)
Setting –> Zinc-high.met
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Zinc (low levels)Differential Pulse Stripping Voltammetry (DPS/a)
Setting –> Zinc-low.met
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