roots | An-Najah Staff

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.

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 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.

Effects of Root and Foliar Treatments of Carrot Plants with Lead and Cadmium on the Growth, Uptake and the Distribution of Uptake of Metals in Treated Plants

Sun, 2014-01-12 11:38 — Mohammed Al-Subu'

Journal Title, Volume, Page:

Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology Volume 27, Issue 7, 1992

Year of Publication:

1992

Link:

http://www.tandfonline.com/doi/abs/10.1080/10934529209375823#.UtJd4bQYOrA

Authors:

Radi Salim

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

M.M. Al‐Subu

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]

A. Douleh

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

L. Chenavier

Department of Ecology, Faculty of Biology , Bielefeld University , Bielefeld 1, D‐4800, Germany

J. Hagemeyer

Department of Ecology, Faculty of Biology , Bielefeld University , Bielefeld 1, D‐4800, Germany

Preferred Abstract (Original):

Toxicity of cadmium and lead on the growth of carrot plants has been studied. Cadmium has been found to be more toxic than lead especially on the shoots of carrot plants.
Foliar treatment has been compared with root‐treatment for the two elements on carrots and on their roots and shoots.
Concentrations and total contents of lead and cadmium in whole plant in roots and in shoots have been determined for treated carrot plants and compared in root‐treatment with foliar‐treatment. Explanations have been suggested whenever possible to illucidate the results obtained.
Percentages of the metals taken by plants from the whole amounts of metal added during treatment have been calculated and related to type of metal used, concentration of metal in solutions used for treatment and the way of treatment.