Spectrophotometric Determination of Trace Amounts of Calcium Using the Calcium Complex with Alizarin
The reaction between calcium and alizarin (ALZ) was investigated for the spectrophotometric determination of trace amounts of calcium. The cationic surfactant, cetyltrimethylammonium bromide (CTAB) was useful to increase the sensitivity. The beta-correction method was applied for the determination o...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Sociedade Brasileira de Química
2002-01-01
|
| Series: | Journal of the Brazilian Chemical Society |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000100012 |
| _version_ | 1817985408114360320 |
|---|---|
| author | Hong-Wen Gao |
| author_facet | Hong-Wen Gao |
| author_sort | Hong-Wen Gao |
| collection | DOAJ |
| description | The reaction between calcium and alizarin (ALZ) was investigated for the spectrophotometric determination of trace amounts of calcium. The cationic surfactant, cetyltrimethylammonium bromide (CTAB) was useful to increase the sensitivity. The beta-correction method was applied for the determination of the properties of the Ca-ALZ complex instead of ordinary spectrophotometry. Results showed that the complex formed, expressed as Ca(ALZ)2, has a real molar absorptivity equal to 3.74×10³ L mol-1 cm-1 at 630 nm. |
| first_indexed | 2024-04-13T23:57:46Z |
| format | Article |
| id | doaj.art-ad3ef980c9604d439358bc0db5def57f |
| institution | Directory Open Access Journal |
| issn | 0103-5053 |
| language | English |
| last_indexed | 2024-04-13T23:57:46Z |
| publishDate | 2002-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Journal of the Brazilian Chemical Society |
| spelling | doaj.art-ad3ef980c9604d439358bc0db5def57f2022-12-22T02:23:50ZengSociedade Brasileira de QuímicaJournal of the Brazilian Chemical Society0103-50532002-01-011317881Spectrophotometric Determination of Trace Amounts of Calcium Using the Calcium Complex with AlizarinHong-Wen GaoThe reaction between calcium and alizarin (ALZ) was investigated for the spectrophotometric determination of trace amounts of calcium. The cationic surfactant, cetyltrimethylammonium bromide (CTAB) was useful to increase the sensitivity. The beta-correction method was applied for the determination of the properties of the Ca-ALZ complex instead of ordinary spectrophotometry. Results showed that the complex formed, expressed as Ca(ALZ)2, has a real molar absorptivity equal to 3.74×10³ L mol-1 cm-1 at 630 nm.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000100012beta-correction principlecalcium complexalizarintrace calcium |
| spellingShingle | Hong-Wen Gao Spectrophotometric Determination of Trace Amounts of Calcium Using the Calcium Complex with Alizarin Journal of the Brazilian Chemical Society beta-correction principle calcium complex alizarin trace calcium |
| title | Spectrophotometric Determination of Trace Amounts of Calcium Using the Calcium Complex with Alizarin |
| title_full | Spectrophotometric Determination of Trace Amounts of Calcium Using the Calcium Complex with Alizarin |
| title_fullStr | Spectrophotometric Determination of Trace Amounts of Calcium Using the Calcium Complex with Alizarin |
| title_full_unstemmed | Spectrophotometric Determination of Trace Amounts of Calcium Using the Calcium Complex with Alizarin |
| title_short | Spectrophotometric Determination of Trace Amounts of Calcium Using the Calcium Complex with Alizarin |
| title_sort | spectrophotometric determination of trace amounts of calcium using the calcium complex with alizarin |
| topic | beta-correction principle calcium complex alizarin trace calcium |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532002000100012 |
| work_keys_str_mv | AT hongwengao spectrophotometricdeterminationoftraceamountsofcalciumusingthecalciumcomplexwithalizarin |