Please wait, while we are loading the content...
Please wait, while we are loading the content...
| Content Provider | Springer Nature Link |
|---|---|
| Author | Rouhi, Maryam Pourbasheer, Eslam Ganjali, Mohammad Reza |
| Copyright Year | 2015 |
| Abstract | Dispersive liquid–liquid microextraction with high performance liquid chromatography and response surface methodology was developed for preconcentration and determination of dipyridamole in water and urine samples. The effects of different factors on the extraction efficiency were studied simultaneously using experimental design. The variables of interest in the process were extraction and disperser solvent volumes, salt effect, sample volume, centrifuge time, centrifuge speed, and extraction time. An orthogonal array design was performed for screening of variables to determine the significant variables affecting the extraction efficiency. Then, the significant factors were optimized using a fractional factorial design. The optimum experimental conditions found from this statistical evaluation included: sample volume 4 cm3, volume of extraction solvent (chloroform) 60 mm3, volume of disperser solvent (methanol) 0.5 cm3, sodium chloride concentration 2 × 10−4 g cm−3, extraction time 1 min, centrifuge speed 2000 rpm, and centrifuge time 5 min. The method was validated over a concentration range of 4–700 µg dm−3 for urine sample and 0.4–700 µg dm−3 for water sample. The proposed method showed good agreement between the experimental data and predictive value, and it has been successfully employed to determine dipyridamole in water and urine samples. |
| Starting Page | 1593 |
| Ending Page | 1601 |
| Page Count | 9 |
| File Format | |
| ISSN | 00269247 |
| Journal | Monatshefte für Chemie - Chemical Monthly |
| Volume Number | 146 |
| Issue Number | 10 |
| e-ISSN | 14344475 |
| Language | English |
| Publisher | Springer Vienna |
| Publisher Date | 2015-03-26 |
| Publisher Place | Vienna |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Dispersive liquid–liquid microextraction Dipyridamole Experimental design High performance liquid chromatography Chemistry/Food Science Organic Chemistry Inorganic Chemistry Analytical Chemistry Physical Chemistry Theoretical and Computational Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry |
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...
|