Anodic stripping voltammetric determination of trace lead in micro-samples with a mercury ultramicroelectrode

✍ Scribed by Jixian Peng; Wenrui Jin

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 503 KB
• Volume: 264
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(92)87008-9

✦ Synopsis

The anodlc strrppmg voltammetnc charactenstlcs of lead at a mercury ultramlcroelectrode were investigated A procedure for the drgestlon of 1 mg human hair with mtnc and perchlonc acids and an anodlc stnppmg voltammetnc techmque for determmmg trace lead m 5 ~1 of solution are described The relative standard devlatlon of the method IS 4 1% for 1 x lo-' mol 1-l Pb*+ at a mercury ultramlcroelectrode urlth a radius of 5 pm