A flow analysis system integrating an optoelectronic detector for the quantitative determination of active ingredients in pharmaceutical formulations

Turkey N.S. Turkey; Jalal N. Jeber

doi:10.1016/j.microc.2020.105710

Details

Publication Date

Fri Jan 01 2021

Journal Name

Microchemical Journal

Volume

160

DOI

10.1016/j.microc.2020.105710

Choose Citation Style

Statistics

View publication

14

Statistics

(18)

(14)

A flow analysis system integrating an optoelectronic detector for the quantitative determination of active ingredients in pharmaceutical formulations

Optoelectronic detector

Light scattering

Turbidity

Pharmaceutical formulations

Flow injection analysis

Turkey N.S. Turkey

Jalal N. Jeber

...Show More Authors

View Publication Preview PDF

Quick Preview PDF

Publication Date

Fri Jan 01 2016

Journal Name

Iraqi J. Sci., Special Issue, Part B

Complex Dynamics in incoherent source with ac-coupled optoelectronic Feedback

Kejeen

...Show More Authors

The appearance of Mixed Mode Oscillations (MMOs) and chaotic spiking in a Light Emitting Diode (LED) with optoelectronic feedback theoretically and experimentally have been reported. The transition between periodic and chaotic mixed-mode states has been investigated by varying feedback strength. In incoherent semiconductor chaotically spiking attractors with optoelectronic feedback have been observed to be the result of canard phenomena in three-dimensional phase space (incomplete homoclinic scenarios).

Preview PDF

Publication Date

Sun Dec 01 2019

Journal Name

Baghdad Science Journal

Colorimetric Assay of Thiamine Hydrochloride in Pharmaceutical Preparations

Pharmaceutical

Preparations Spectrophotometric

Thiamine hydrochloride

Ahmad

...Show More Authors

A simple, rapid, accurate and sensitive spectrophotometric method for the determination of thiaminehydrochloride has been developed. The method is based on the formation of the Schiff’s base between the primary amino group present in thiamine hydrochloride and aldehyde group present in the vanillin reagent to produce a yellow colored complex having maximum absorption at 390 nm. Beer^’s law has obeaid over the concentration range of 2-28µg/mL, with molar absorptivity of 0.96x10⁴L/mol.cm. The average recovery which is a measure of accuracy is 100±1.3% and the relative standard deviation (RSD) is less than1.5 .The present method is considered to be

View Publication Preview PDF

(4)

Publication Date

Wed Mar 11 2020

Journal Name

Journal Of Cardiovascular Disease Research

Resistive Index is an Early Indicator for Flow Deterioration in Comparison with Intima Media Thickness for Patients with Hypertension and Diabetes in Relation to Age

Carotid artery atherosclerosis

brain perfusion

intima media and resistive index.

Ahmed Abduljabar

Samar I

Anmar Z

...Show More Authors

Background: Atherosclerosis is well known related to age and certain cardiovascular diseases. Aging is one reason of arteries function deterioration which can cause loss of compliance and plaque accumulation, this effect increases by the presence of certain diseases such as hypertension and diabetes disease. Aim: To investigate the reduction of blood supply to the brain in patients with diabetes and hypertension with age and the role of resistive index in the diagnosis of reduced blood flow. Method: Patients with both diseases diabetic and hypertension were classified according to their age to identify the progression of the disease and factors influencing the carotid artery blood flow. By using ultrasound and standard Doppler techniq

View Publication

(2)

(1)

Publication Date

Tue Mar 01 2022

Journal Name

International Journal Of Research In Social Sciences & Humanities

Intellectual property rights and its implications for the pharmaceutical industry in Iraq under accession to the World Trade Organization

Keywords: Intellectual Property Rights

Pharmaceutical industry

World Trade Organization

Dalia

Yousif

...Show More Authors

The main risks arising from the WTO Agreement are the inequality and lack of competitiveness of most pharmaceutical goods, as well as the fact that Iraq is a net importer of medicines that are at the core of consumer needs, The subject matter of the Convention on the Protection of Intellectual Property Rights and its implications for the pharmaceutical industry, in particular, coinciding with the situation of financial and administrative corruption, all of which has resulted in drug fraud in the Iraqi market and its impact on public health. The control of medical technology, the persistence of the technological gap and its effects on high price levels, and the fact that domestic drug producers are obliged to obtain production licenses from

Publication Date

Fri Feb 01 2019

Journal Name

Journal Of Economics And Administrative Sciences

Impact of quantitative (indirect) instruments of monetary policy on some indicators of financial stability in Iraq for the period (2003-2016)

ادوات السياسة النقدية غير المباشرة – الاحتياطي القانوني- الاستقرار المالي – المؤشرات التجميعية .

Tools Monetary Policy Indirect- Legal Reserve- Financial Stability- Aggregate Indexes .

نعيم صباح

عقيل عبد الحسين

مصطفى محمد

...Show More Authors

The indirect monetary policy tools led to financial stability for the period being studied through the use of indicators of financial stability (aggregate) to show the effect of the foreign reserves of the Central Bank of Iraq and its indirect instruments in achieving financial and economic stability, especially after the significant decline in oil prices and dependence of the Iraqi economy on Oil (rent) and lower reserves of the Central Bank of Iraq after 2014 and now compared to previous years, the goal of this research is to achieve financial stability according to selected indicators and achieve an optimal monetary policy to achieve the development goals of The economic policy in the country. Standard models were used to test

View Publication Preview PDF

Publication Date

Thu Dec 01 2016

Journal Name

Journal Of Engineering

A Laboratory Study Attempt of Flow and Energy Dissipation in Stepped Spillways

Flow energy dissipation

stepped spillways

flow types

gravel roughed surface

cavitation.

Thulfikar Razzak

Haider Ali

Abdul- Sahib Taufeeq

...Show More Authors

A new laboratory study conducted on stepped spillways in order to investigate their efficiency of dissipating flow energy. All previous study on stepped spillway indicated that the flow energy dissipation decreased as increasing in discharge. Increasing in the step numbers and the spillway slope led to energy dissipation decrease. In this study, an experimental attempt to increase energy dissipation at variable discharges was performed on stepped spillway and that leads to decreasing the cost of initiating the stilling basin or may be ignoring it. Five spillways were constructed from concrete and tested to investigate and compare among them. Three were roughed by gravel with different size for each one, one of them was s

View Publication Preview PDF

Publication Date

Mon Feb 14 2022

Journal Name

Proceedings Of The National Academy Of Sciences

Pharmaceutical pollution of the world’s rivers

John L.

Alistair B.A.

Dana W.

Kenneth M. Y.

Racliffe W. S.

Cristóbal

Aiko D.

Julie

Marc

Robert A.

Alejandra

Aida

Anja

Pedro

Macarena

Chris

Magdalena

Monique

Thais

Vahagn

Yekaterina

Clare S.

Christopher J.

Thilo

Tapos

Volga

Jessica

Jean L.

Francisco

Maria T. P.

Victorien

Gildas

Oumar

Jules M.

Linda E.

Michelle

Donald

Romaric

Jaime

Guang-Guo

Chang-Er

Martha

Jina

Jean-Paul

John

Suspense A.

Penelope

Silvia

Nikolina

Milena

Despo

Lida

Vladimíra

Jan

María

Bayable A.

Jeanne

Arnaud

Peter

Ilia

Sven

Gerasimos

Halldór P.

Molly

Thatikonda

Manisha

Anindrya

Adee

Nima

Ali

Omar

Salem S.

Francesco

Benny

Tom

Koffi Marcellin

Bakhyt

Raikhan

Lydia

Jemimah K.

Peter

Victor

Nathaniel T.

Sheck

Ahmad Zaharin

Ley Juen

Mahamoudane

Seydou T.

Rik

Olatayo

Muhammad

Ziad

Aaron

Jorge Manuel

María

Heidi

Ian

Fabio

Alhaji Brima

Bashiru M.

Vesna

Mitja

Melusi

Kyungho

Habyeong

John L. Celestino

Andreu

Priyanie

Anna

Gisela

Armin K.

Alex C.

Jheng-Jie

Rebecca

Madaka

Ulas

Turgut T.

Julius B.

Yuliya

Yuriy

Horacio

Andrés

Douglas B.

Maritza

David

Charles

...Show More Authors

Environmental exposure to active pharmaceutical ingredients (APIs) can have negative effects on the health of ecosystems and humans. While numerous studies have monitored APIs in rivers, these employ different analytical methods, measure different APIs, and have ignored many of the countries of the world. This makes it difficult to quantify the scale of the problem from a global perspective. Furthermore, comparison of the existing data, generated for different studies/regions/continents, is challenging due to the vast differences between the analytical methodologies employed. Here, we present a global-scale study of API pollution in 258 of the world’s rivers, representing the environmental influence of 471.4 million people across

View Publication

(867)

(837)

Publication Date

Sun Mar 02 2014

Journal Name

Baghdad Science Journal

Exploiting the diazotization reaction of 4- minoacetophenone for Methyldopa determination.

Methyldopa

determination

diazotization

pharmaceutical preparation.

Jwan A.

...Show More Authors

Based on the diazotization reaction of 4-aminoacetophenone with sodium nitrite in acid medium to form diazonium salt, which was coupled with Methyldopa to form a violet reddish soluble azo dye with maximum absorbance at 560 nm,a batch procedure had been developed for the estamination of Methyldopa. Under optimum experimental parameters affecting on the development and stability of the colored product, Beer´s law obeyed in the range (0.5-45) ?g.ml-1 with a correlation coefficient (0.9979).The proposed method was successfully applied to the determination of Methyldopa in either pure form and in commercial brands of pharmaceuticals, no interference was observed from common excipients in the formulations. The analytical results obtained by app

View Publication Preview PDF

Publication Date

Thu Jun 29 2023

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Prediction of Hydraulic Flow Units for Jeribe Reservoir in Jambour Oil Field Applying Flow Zone Indicator Method

Darya Khalid

Sameera

...Show More Authors

The Jeribe reservoir in the Jambour Oil Field is a complex and heterogeneous carbonate reservoir characterized by a wide range of permeability variations. Due to limited availability of core plugs in most wells, it becomes crucial to establish correlations between cored wells and apply them to uncored wells for predicting permeability. In recent years, the Flow Zone Indicator (FZI) approach has gained significant applicability for predicting hydraulic flow units (HFUs) and identifying rock types within the reservoir units. This paper aims to develop a permeability model based on the principles of the Flow Zone Indicator. Analysis of core permeability versus core porosity plot and Reservoir Quality Index (RQI) - Normalized poros

View Publication

(1)

Publication Date

Thu Jun 20 2019

Journal Name

Baghdad Science Journal

A Comparative Analysis of the Zernike Moments for Single Object Retrieval

shape features

shape image retrieval

Zernike Moments

Abu Bakar

...Show More Authors

Zernike Moments has been popularly used in many shape-based image retrieval studies due to its powerful shape representation. However its strength and weaknesses have not been clearly highlighted in the previous studies. Thus, its powerful shape representation could not be fully utilized. In this paper, a method to fully capture the shape representation properties of Zernike Moments is implemented and tested on a single object for binary and grey level images. The proposed method works by determining the boundary of the shape object and then resizing the object shape to the boundary of the image. Three case studies were made. Case 1 is the Zernike Moments implementation on the original shape object image. In Case 2, the centroid of the s

View Publication Preview PDF

(2)

1 2 ... 33 34 35 36 ... 2980 2981