Journal of Trace and Microprobe Techniques最新文献_第6页

Molecular Charge Transfer Complexes of Norfloxacin with Nitrobenzenes 诺氟沙星与硝基苯的分子电荷转移配合物

Journal of Trace and Microprobe Techniques Pub Date : 2003-01-02 DOI: 10.1081/TMA-120020261

E. El-Mossalamy

引用次数: 2

Atomic Absorption Spectrometric Determination of Lead and Cadmium in Waste Water Samples After Enrichment and Separation Using Purolite C-100 E Resin Filled in a Syringe-Mountable Filter 原子吸收光谱法测定废水样品中富集分离后的铅和镉，用Purolite c - 100e树脂填充注射器安装过滤器

Journal of Trace and Microprobe Techniques Pub Date : 2003-01-02 DOI: 10.1081/TMA-120017909

E. Demirel, M. Ozcan, S. Akman, N. Tokman

{"title":"Atomic Absorption Spectrometric Determination of Lead and Cadmium in Waste Water Samples After Enrichment and Separation Using Purolite C-100 E Resin Filled in a Syringe-Mountable Filter","authors":"E. Demirel, M. Ozcan, S. Akman, N. Tokman","doi":"10.1081/TMA-120017909","DOIUrl":"https://doi.org/10.1081/TMA-120017909","url":null,"abstract":"Abstract In this study a new hopeful enrichment/separation technique to substitute for batch and column techniques is described. Lead and cadmium were selected as analyte elements. The housing of a syringe mountable membrane filter was filled with Purolite C-100 E cationic resin and mounted to the tip of a plastic syringe. If the sample solution was drawn into the syringe in about 30 s passing through the resin and discharged again for the same length of time, the analyte elements were quantitatively retained at pH ≥ 2. The elements sorbed by the resin were then quantitatively eluted by drawing and discharging 2.5 M HCl as eluent, again at the same flow rates as those used in retention. The recoveries of Pb and Cd were 98.2 and 99%, respectively, with relative standard deviations of around ± 2%. Detection limits (3δ) were 15 µgL−1 for Pb and 10 µgL−1 for Cd. The elements could be concentrated by drawing and discharging several portions of sample successively but eluting only once. Pb and Cd in spiked waste water were recovered quantitatively (>95) with low RSD values of around ±2%. The method proposed is cheaper, simpler, faster and more practical than the column technique. The recoveries and reproducibilities of the method are at the same level as those of the column technique.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"34 1","pages":"161 - 169"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89756733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Simultaneous Voltammetric Determination of Riboflavin and l-Ascorbic Acid in Multivitamin Pharmaceutical Preparations 同时伏安法测定复合维生素制剂中的核黄素和l-抗坏血酸

Journal of Trace and Microprobe Techniques Pub Date : 2003-01-02 DOI: 10.1081/TMA-120017900

K. Mielech

引用次数: 13

Characterization of Additives in Oils by Instrumental Methods 用仪器方法表征油中添加剂

Journal of Trace and Microprobe Techniques Pub Date : 2003-01-02 DOI: 10.1081/TMA-120020269

M. A. Rauf, M. Ikram, A. Noor

引用次数: 0

Adsorption Studies of Ni(II) from Aqueous Solution onto Bentonite 膨润土对水溶液中Ni(II)的吸附研究

Journal of Trace and Microprobe Techniques Pub Date : 2003-01-02 DOI: 10.1081/TMA-120020267

M. A. Rauf, M. Iqbal, M. Ikram, N. Rauf

引用次数: 18

The Investigation of Trace Heavy Metal Concentrations in the Street Dust Samples Collected from Kayseri, Turkey 土耳其开塞利市街道粉尘中痕量重金属浓度的调查

Journal of Trace and Microprobe Techniques Pub Date : 2003-01-02 DOI: 10.1081/TMA-120025821

U. Divrikli, M. Soylak, L. Elçi, M. Doğan

引用次数: 21

Elemental Analysis of the Ashes of Main Thermal Power Plants in Turkey 土耳其主要火电厂炉灰的元素分析

Journal of Trace and Microprobe Techniques Pub Date : 2003-01-02 DOI: 10.1081/TMA-120025822

Y. Nuhoğlu, F. Bülbül

引用次数: 4

Trace Heavy Metal Levels in Street Dust Samples from Yozgat City Center, Turkey 土耳其约兹加特市中心街道尘埃样本中的痕量重金属水平

Journal of Trace and Microprobe Techniques Pub Date : 2003-01-02 DOI: 10.1081/TMA-120020270

U. Divrikli, M. Soylak, L. Elçi, M. Doğan

引用次数: 72

Enhanced Oil Recovery Through Microbial Treatment 微生物处理提高原油采收率

Journal of Trace and Microprobe Techniques Pub Date : 2003-01-02 DOI: 10.1081/TMA-120023069

M. A. Rauf, M. Ikram, N. Tabassum

引用次数: 5

Solid Phase Extraction of Bismuth and Chromium by Rice Husk 稻壳固相萃取铋和铬

Journal of Trace and Microprobe Techniques Pub Date : 2003-01-02 DOI: 10.1081/TMA-120023063

Yasemin Bakircioglu, D. Bakircioglu, S. Akman

{"title":"Solid Phase Extraction of Bismuth and Chromium by Rice Husk","authors":"Yasemin Bakircioglu, D. Bakircioglu, S. Akman","doi":"10.1081/TMA-120023063","DOIUrl":"https://doi.org/10.1081/TMA-120023063","url":null,"abstract":"Abstract A major agricultural waste, rice husk and its ash were used for the preconcentration and separation of bismuth and chromium prior to their determination by flame atomic absorption spectrometry (FAAS) and their sorption properties with respect to bismuth and chromium from water samples were investigated. For this purpose, rice husk was thermally treated at 300°C for one hour and 600°C for ten hours in a muffle furnace. The effects of various experimental conditions on retention and elution efficiencies of studied elements for untreated rice with husk, untreated and thermally treated rice husk were investigated by applying batch and column methods. The analyte elements were quantitatively collected on rice with husk, the untreated and thermally treated rice husk at 300°C if the pH is above 3. The analyte elements retained on the rice with husk, rice husk or its ash were completely recovered by means of 2.0 M hydrochloric acid. Maximum chromium adsorption capacities of untreated rice with husk (URH), rice husk (RH), rice husk ash heated at 300°C (RHA-300) and 600°C (RHA-600) are 0.12, 0.50, 19.09 and 6.49 mg Cr/g adsorbent, respectively and 0.47, 294, 18.34 and 4.90 mg Bi/g adsorbent, respectively. When RHA-300 was used which is the most suitable adsorbent of all, detection limits (3 δ) were 1.3 µg/L for Bi and 1.5 µg/L for Cr. The relative standard deviations for the determinations were found to be 1.0–7.9%. The results showed that RHA especially heated at 300°C could be used as an efficient and cheap adsorbent for the removal of some heavy metals from the natural water samples and for the preconcentration and separation of bismuth and chromium prior to their determination by flame atomic absorption spectrometry.","PeriodicalId":17525,"journal":{"name":"Journal of Trace and Microprobe Techniques","volume":"32 1","pages":"467 - 478"},"PeriodicalIF":0.0,"publicationDate":"2003-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87766004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19