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Plumbagin, a Naturally Occurring Naphthoquinone: Its Isolation, Spectrophotometric Determination in Roots, Stems, and Leaves in Plumbago Europaea L.

Thu, 2015-05-14 11:35 — Mohammed A. A. Hannoun

Journal Title, Volume, Page:

Spectroscopy Letters, Volume 27, Issue 4 May 1994 , pages 409 - 416

Year of Publication:

1994

Link:

http://www.tandfonline.com/doi/abs/10.1080/00387019408007247?journalCode=lstl20

Authors:

Mohammed A. Al-Nuri

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Mohammed A. Hannoun

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Nidal A. Zatar

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Maher A. Abu-Eid

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Waheed J. Al-Jondi

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Ahmad I. Hussein

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Mohammed S. Ali-Shtayeh

Department of Biology and Biotechnology, Faculty of Science, An-Najah National University, Nablus, Palestine

Preferred Abstract (Original):

A new method for isolation and spectrophotometric determination of plumbagin is presented. Plumbagin was isolated by thin layer chromatography (TLC) and column chromatography (CC) techniques, as an orange tinged yellow long crystalline substances. Plumbagin exhibits two absrop-tion maxima at 410 and 510 nm. Stability of the color, pKa value, and the effect of pH were studied. Beer's law is obeyed over the range 0.9-45 ppm. The method is applied to the determination of plumbagin in roots, stems, and leaves of Plumbago europaea L. plant.

Plumbagin, a Naturally Occurring Naphthoquinone: Its Isolation, Spectrophotometric Determination in Roots, Stems, and Leaves in Plumbago Europaea L.

Tue, 2014-04-01 12:35 — Dr. Waheed J. Jondi

Journal Title, Volume, Page:

Spectroscopy Letters: An International Journal for Rapid Communication Volume 27, Issue 4, pages 409-416

Year of Publication:

1994

Link:

http://www.tandfonline.com/doi/abs/10.1080/00387019408007247#preview

Authors:

Waheed J. Al-Jondi

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Mohammed A. Al-Nuri

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Mohammed A. Hannoun

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Nidal A. Zatar

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Maher A. Abu-Eid

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Ahmad I. Hussein

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

Mohammed S. Ali-Shtayeh

Department of Biology and Biotechnology, Faculty of Science, An-Najah National University, Nablus. Palestine

Preferred Abstract (Original):

A new method for isolation and spectrophotometric determination of plumbagin is presented. Plumbagin was isolated by thin layer chromatography (TLC) and column chromatography (CC) techniques, as an orange tinged yellow long crystalline substances. Plumbagin exhibits two absrop-tion maxima at 410 and 510 nm. Stability of the color, pK_a value, and the effect of pH were studied. Beer's law is obeyed over the range 0.9-45 ppm. The method is applied to the determination of plumbagin in roots, stems, and leaves of Plumbago europaea L. plant.

Effect of Nickel Treatment on the Growth of Egg‐Plant

Tue, 2014-04-01 11:57 — Marwan N. Haddad

Journal Title, Volume, Page:

Journal of Environmental Science and Health . Part A: Environmental Science and Engineering Volume 23, Issue 4, 1988

Year of Publication:

1988

Link:

http://www.tandfonline.com/doi/abs/10.1080/10934528809375418#.UzqYMld8BSE

Authors:

Radi Salim

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Marwan Haddad

Department of Civil Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine

Current Affiliation:

Department of Civil Engineering, Faculty of Engineering and Information Technology, An-Najah National University, Nablus. Palestine

Ibrahim El‐Khatib

Preferred Abstract (Original):

Nickel may be a potential cause of damage to plant and a health hazard to man by being transferred to him through plant. In this study the effect of nickel treatment on the growth of egg‐plant has been studied. Both root‐applied treatment and foliar‐applied treatment have been used. The effect of nickel treatment on the nickel concentration in the various parts of plant has been studied. The effect of nickel treatment on the total nickel content of the various parts of plant and the percentage of this nickel content from the total nickel content of the whole plant has been also looked into.

Plumbagin a Naturally Occurring Naphthoquinone: Its Isolation, Spectrophotometric ‎Determination in Roots, Stems, and Leaves in Plumbago Europea L

Tue, 2014-04-01 08:45 — Mohammed Abdullah Al-Nuri

Journal Title, Volume, Page:

Spectroscopy Letters, Volume 27, Issue 4, pages 409 - 416

Year of Publication:

1994

Link:

http://blogs.najah.edu/staff/nidalzatar/article/Plumbagin-a-Naturally-Occurring-...

Authors:

Mohammed A. Al-Nuri

Chemistry Department, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Maher A. Abu-Eid

Chemistry Department, An-Najah National University, Nablus, Palestine

Nidal A. Zatar

Chemistry Department, An-Najah National University, Nablus, Palestine

Waheed J. Al-Jondi

Chemistry Department, An-Najah National University, Nablus, Palestine

Mohammed A. Hannoun

Chemistry Department, An-Najah National University, Nablus, Palestine

Mohammed S. Ali-Shtayeh

Biology Department, An-Najah National University, Nablus, Palestine

Preferred Abstract (Original):

A new method for isolation and spectrophotometric determination of plumbagin is presented. Plumbagin was isolated by thin layer chromatography (TLC) and column chromatography (CC) techniques, as an orange tinged yellow long crystalline substances. Plumbagin exhibits two absrop-tion maxima at 410 and 510 nm. Stability of the color, pKa value, and the effect of pH were studied. Beer's law is obeyed over the range 0.9-45 ppm. The method is applied to the determination of plumbagin in roots, stems, and leaves of Plumbago europaea L. plant.

Plumbagin, a Naturally Occurring Naphthoquinone: Its Isolation, Spectrophotometric Determination in Roots, Stems, and Leaves in Plumbago Europaea L.

Mon, 2014-03-31 10:50 — Nidal Zatar

Journal Title, Volume, Page:

Spectroscopy Letters: An International Journal for Rapid Communication Volume 27, Issue 4, pages 409-416

Year of Publication:

1994

Link:

http://www.tandfonline.com/doi/abs/10.1080/00387019408007247#preview

Authors:

Nidal A. Zatar

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Mohammed A. Al-Nuri

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Maher A. Abu-Eid

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Waheed J. Al-Jondi

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Ahmad I. Hussein

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Mohammed S. Ali-Shtayeh

Department of Biology and Biotechnology, Faculty of Science, An-Najah National University, Nablus. Palestine

Preferred Abstract (Original):

A new method for isolation and spectrophotometric determination of plumbagin is presented. Plumbagin was isolated by thin layer chromatography (TLC) and column chromatography (CC) techniques, as an orange tinged yellow long crystalline substances. Plumbagin exhibits two absrop-tion maxima at 410 and 510 nm. Stability of the color, pK_a value, and the effect of pH were studied. Beer's law is obeyed over the range 0.9-45 ppm. The method is applied to the determination of plumbagin in roots, stems, and leaves of Plumbago europaea L. plant.

Plumbagin a Naturally Occurring Naphthoquinone: Its Isolation, Spectrophotometric ‎Determination in Roots, Stems, and Leaves in Plumbago Europea L

Thu, 2014-03-27 14:01 — Maher An-Natsheh

Journal Title, Volume, Page:

Spectroscopy Letters, Volume 27, Issue 4, pages 409 - 416

Year of Publication:

1994

Link:

http://blogs.najah.edu/staff/nidalzatar/article/Plumbagin-a-Naturally-Occurring-...

Authors:

Maher A. Abu-Eid

Chemistry Department, An-Najah National University, Nablus, Palestine

Current Affiliation:

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus, Palestine

[email protected]

Ahmad I. Hussein

Chemistry Department, An-Najah National University, Nablus, Palestine

Nidal A. Zatar

Chemistry Department, An-Najah National University, Nablus, Palestine

Waheed J. Al-Jondi

Chemistry Department, An-Najah National University, Nablus, Palestine

Mohammed A. Al-Nuri

Chemistry Department, An-Najah National University, Nablus, Palestine

Mohammed A. Hannoun

Chemistry Department, An-Najah National University, Nablus, Palestine

Mohammed S. Ali-Shtayeh

Biology Department, An-Najah National University, Nablus, Palestine

Preferred Abstract (Original):

A new method for isolation and spectrophotometric determination of plumbagin is presented. Plumbagin was isolated by thin layer chromatography (TLC) and column chromatography (CC) techniques, as an orange tinged yellow long crystalline substances. Plumbagin exhibits two absrop-tion maxima at 410 and 510 nm. Stability of the color, pKa value, and the effect of pH were studied. Beer's law is obeyed over the range 0.9-45 ppm. The method is applied to the determination of plumbagin in roots, stems, and leaves of Plumbago europaea L. plant.

Plumbagin, a Naturally Occurring Naphthoquinone: Its Isolation, Spectrophotometric Determination in Roots, Stems, and Leaves in Plumbago Europaea L.

Tue, 2014-02-18 12:17 — Mohammed Saleem Ali-Shtayeh

Journal Title, Volume, Page:

Spectroscopy Letters: An International Journal for Rapid Communication Volume 27, Issue 4, pages 409-416, DOI: 10.1080/00387019408007247, 1994

Year of Publication:

1994

Link:

http://www.tandfonline.com/doi/abs/10.1080/00387019408007247#preview

Authors:

Mohammed A. Al-Nuri

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Mohammed A. Hannoun

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Nidal A. Zatar

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Maher A. Abu-Eid

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Waheed J. Al-Jondi

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Ahmad I. Hussein

Department of Chemistry, Faculty of Science, An-Najah National University, Nablus. Palestine

Mohammed S. Ali-Shtayeh

Department of Biology and Biotechnology, Faculty of Science, An-Najah National University, Nablus. Palestine

Current Affiliation:

Department of Biology and Biotechnology, Faculty of Science, An-Najah National University, Nablus. Palestine

[email protected]

Preferred Abstract (Original):

A new method for isolation and spectrophotometric determination of plumbagin is presented. Plumbagin was isolated by thin layer chromatography (TLC) and column chromatography (CC) techniques, as an orange tinged yellow long crystalline substances. Plumbagin exhibits two absrop-tion maxima at 410 and 510 nm. Stability of the color, pK_a value, and the effect of pH were studied. Beer's law is obeyed over the range 0.9-45 ppm. The method is applied to the determination of plumbagin in roots, stems, and leaves of Plumbago europaea L. plant.