Spectrophotometric Determination of Selenium (IV) Using Methdilazine Hydrochloride

Mahaveer B. MELWANKI; Jaldappa SEETHARAMAPPA

Makale detayları

Spectrophotometric Determination of Selenium (IV) Using Methdilazine Hydrochloride

Yazarlar:

Mahaveer B. MELWANKI | Jaldappa SEETHARAMAPPA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2000 Vol.24 Issue 3, pp.287-290

Belge Tipi:

Makale

Yayın Tarihi:

2/2000

Belge Dili:

Türkçe

Document ID (Org No.):

2000730270

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527

Özet:

 

Methdilazine hydrochloride is proposed as a selective and sensitive reagent for the spectrophotometric determination of selenium (IV). The reagent forms a red radical cation by selenimum (IV) in hydrochloric acid medium and exhibits an absorption maximum at 513 nm. Beer's law is valid over the concentration range 0.1-2.3 mg1-1 of selenium (IV). Sandell's sensitivity of the reaction is found to be 3.57 ng cm-2 and the molar extinction coefficient is 9.32 x 104 1 mol-1 cm-1 at 513 nm. The effects of acidity, reagent concentration, temperature and diverse ions upon the absorbance of the red species are critically assessed. The proposed method has been applied for the determination of selenium in alloys.

 

Methdilazine hydrochloride is proposed as a selective and sensitive reagent for the spectrophotometric determination of selenium (IV). The reagent forms a red radical cation by selenimum (IV) in hydrochloric acid medium and exhibits an absorption maximum at 513 nm. Beer's law is valid over the concentration range 0.1-2.3 mg1-1 of selenium (IV). Sandell's sensitivity of the reaction is found to be 3.57 ng cm-2 and the molar extinction coefficient is 9.32 x 104 1 mol-1 cm-1 at 513 nm. The effects of acidity, reagent concentration, temperature and diverse ions upon the absorbance of the red species are critically assessed. The proposed method has been applied for the determination of selenium in alloys.

Makale detayları

Spectrophotometric Determination of Selenium (IV) Using Methdilazine Hydrochloride

Yazarlar: Mahaveer B. MELWANKI | Jaldappa SEETHARAMAPPA

Yayıncı: TUBITAK

Dergi: Turkish Journal of Chemistry 2000 Vol.24 Issue 3, pp.287-290

Belge Tipi: Makale

Yayın Tarihi: 2/2000

Belge Dili: Türkçe

Document ID (Org No.): 2000730270

Sıklık: İki Aylık

eISSN: 1303-6130

pISSN: 1300-0527

Sayı

Yazarlar:

Mahaveer B. MELWANKI | Jaldappa SEETHARAMAPPA

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Chemistry 2000 Vol.24 Issue 3, pp.287-290

Belge Tipi:

Makale

Yayın Tarihi:

2/2000

Belge Dili:

Türkçe

Document ID (Org No.):

2000730270

Sıklık:

İki Aylık

eISSN:

1303-6130

pISSN:

1300-0527