Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Zhang, Dongxia Wang, Xue-Mei Xue, Linke Wang, Tiane Du, Xinzhen |
| Copyright Year | 2014 |
| Abstract | A new method was developed for the simultaneous determination of six phthalic acid esters (PAEs) in different environmental water samples using salt-assisted dispersive liquid–liquid microextraction with carbon tetrachloride as an extraction solvent and acetonitrile as a dispersive solvent coupled with high performance liquid chromatography with UV detection. The influence of the added NaCl on the enrichment factor (EF) in DLLME was investigated. The salting-out effect causes the hydrophobicity of organic analytes to be increased and high EFs to be more pronounced than those in salt-free water. Greater EF, wider linearity, better recovery, smaller relative standard deviation (RSD) and lower limit of detection were obtained at higher concentration of NaCl. Under optimized extraction conditions, good linearity was observed for all analytes in a range of 1.00–100 μg L−1 with the correlation coefficient (r2) ≥0.9992. The limits of detection based on the signal to noise ratio of 3 were 0.01–0.03 μg L−1. The recoveries of PAEs were 97.5–105.5% for spiked water with 20 μg L−1 of PAEs. The repeatability of the proposed method expressed as RSDs ranged from 3.13 to 5.32% (n = 3). EFs are in the range of 78 to 262 fold. The method was applied to the determination of PAEs in water samples from local river, rain and urban wastewater treatment plants with the standard addition, the recoveries of PAEs were 86.2–105.0%, 93.8–107.0% and 92.4–106.3%, and the RSDs were below 6.79%. The current procedure afforded a convenient, inexpensive and reliable sample preparation with high extraction efficiency for trace PAEs in environmental water samples. |
| Starting Page | 1121 |
| Ending Page | 1127 |
| Page Count | 7 |
| File Format | HTM / HTML PDF |
| ISSN | 17599660 |
| Volume Number | 6 |
| Issue Number | 4 |
| Journal | Analytical Methods |
| DOI | 10.1039/c3ay41996g |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Acid Carbon tetrachloride Acetonitrile Salting out Hydrophobe High-performance liquid chromatography Correlation and dependence Wastewater Solvent Coefficient of variation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry Engineering Chemical Engineering |
National Digital Library of India (NDLI) is a virtual repository of learning resources which is not just a repository with search/browse facilities but provides a host of services for the learner community. It is sponsored and mentored by Ministry of Education, Government of India, through its National Mission on Education through Information and Communication Technology (NMEICT). Filtered and federated searching is employed to facilitate focused searching so that learners can find the right resource with least effort and in minimum time. NDLI provides user group-specific services such as Examination Preparatory for School and College students and job aspirants. Services for Researchers and general learners are also provided. NDLI is designed to hold content of any language and provides interface support for 10 most widely used Indian languages. It is built to provide support for all academic levels including researchers and life-long learners, all disciplines, all popular forms of access devices and differently-abled learners. It is designed to enable people to learn and prepare from best practices from all over the world and to facilitate researchers to perform inter-linked exploration from multiple sources. It is developed, operated and maintained from Indian Institute of Technology Kharagpur.
Learn more about this project from here.
NDLI is a conglomeration of freely available or institutionally contributed or donated or publisher managed contents. Almost all these contents are hosted and accessed from respective sources. The responsibility for authenticity, relevance, completeness, accuracy, reliability and suitability of these contents rests with the respective organization and NDLI has no responsibility or liability for these. Every effort is made to keep the NDLI portal up and running smoothly unless there are some unavoidable technical issues.
Ministry of Education, through its National Mission on Education through Information and Communication Technology (NMEICT), has sponsored and funded the National Digital Library of India (NDLI) project.
| Sl. | Authority | Responsibilities | Communication Details |
|---|---|---|---|
| 1 | Ministry of Education (GoI), Department of Higher Education |
Sanctioning Authority | https://www.education.gov.in/ict-initiatives |
| 2 | Indian Institute of Technology Kharagpur | Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project | https://www.iitkgp.ac.in |
| 3 | National Digital Library of India Office, Indian Institute of Technology Kharagpur | The administrative and infrastructural headquarters of the project | Dr. B. Sutradhar bsutra@ndl.gov.in |
| 4 | Project PI / Joint PI | Principal Investigator and Joint Principal Investigators of the project |
Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon |
| 5 | Website/Portal (Helpdesk) | Queries regarding NDLI and its services | support@ndl.gov.in |
| 6 | Contents and Copyright Issues | Queries related to content curation and copyright issues | content@ndl.gov.in |
| 7 | National Digital Library of India Club (NDLI Club) | Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach | clubsupport@ndl.gov.in |
| 8 | Digital Preservation Centre (DPC) | Assistance with digitizing and archiving copyright-free printed books | dpc@ndl.gov.in |
| 9 | IDR Setup or Support | Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops | idr@ndl.gov.in |
|
Loading...
|