Analytical chemistry
1. Determination of Clozapine by Air Assisted Dispersive Liquid-Liquid Microextraction Based on Solidification of Organic Droplet Followed by HPLC in Human Serum

Amir Hosein Mohammad shafiee; Mohammad Reza Mohammad shafiee

Volume 3, Issue 2, pp. 111-236 , March and April 2020, , Pages 111-121

http://dx.doi.org/10.33945/SAMI/AJCA.2020.2.1

Abstract
  Due to the challenges of maintaining serum levels in a safe therapeutic range (1–3 μM), Clozapine is one of the most promising medications for managing schizophrenia. Recently the barrier to the broader use of clozapine has been recognized to be the measurement of clozapine levels, which is ...  Read More

Determination of Clozapine by Air Assisted Dispersive Liquid-Liquid Microextraction Based on Solidification of Organic Droplet Followed by HPLC in Human Serum


Analytical chemistry
2. Pesticide Residues Detected in Selected Crops, Fish and Soil from Irrigation Sites in the Upper East Region of Ghana

Samson Abah Abagale; Sampson Atiemo; Felix Kofi Abagale; Alex Ampofo; Charles Yaw Amoah; Sylvanus Aguree; Yaw Osei

Volume 3, Issue 2, pp. 111-236 , March and April 2020, , Pages 221-236

http://dx.doi.org/10.33945/SAMI/AJCA.2020.2.10

Abstract
  Crops, soil and fish from irrigation farms were investigated in the Upper East Region of Ghana. Questionnaire was administered to collect pesticide use information from farmers, and tomatoes, okro, pepper and garden eggs as well as fish and soil samples were collected and analysed using Gas Chromatography-Electron ...  Read More

Pesticide Residues Detected in Selected Crops, Fish and Soil from Irrigation Sites in the Upper East Region of Ghana


Analytical chemistry
3. Comparative Assessment of Trace and Heavy Metals in Available Drinking Water From Different Sources in the Centre of Lagos and off Town (Ikorodu LGA) of Lagos State, Nigeria

Ogbuneke Christian Chika; Ezeibeanu Amara Prince

Volume 3, Issue 1, pp. 1-110. , Winter 2020, , Pages 94-104

http://dx.doi.org/10.33945/SAMI/AJCA.2020.1.9

Abstract
  The analysis of heavy metals in drinking water from different sources in Lagos state, Nigeria were determined with a view of comparing the effects of level of Industrialization, population density and urbanization on the water quality in the centre of Lagos and off town of Lagos (Ikorodu LGA, a relatively ...  Read More

Comparative Assessment of Trace and Heavy Metals in Available Drinking Water From Different Sources in the Centre of Lagos and off Town (Ikorodu LGA) of Lagos State, Nigeria


Analytical chemistry
4. Spectrophotometric Determination of Selenium (IV) Using 4,5-diamino-o-xylene as a New Chromogenic Reagent

Mehdi Tavancheh; Asadollah Beiraghi

Volume 3, Issue 1, pp. 1-110. , Winter 2020, , Pages 15-23

http://dx.doi.org/10.33945/SAMI/AJCA.2020.1.3

Abstract
  A simple, rapid, and sensitive spectrophotometric method for the determination of selenium (IV) based on the formation of a 1:2 complex with 4,5-diamino-o-xylene (DAX) as a new sensitive and selective chromogenic reagent is developed. The DAX reacts with selenium (IV) in the presence of citric acid to ...  Read More

Spectrophotometric Determination of Selenium (IV) Using 4,5-diamino-o-xylene as a New Chromogenic Reagent


Analytical chemistry
5. Levels of Castor Oil-Induced Diarrhoea in Rats Treated with Leaf Extract of Corchorus olitorius Linn and Aerial Part Extract of Scoporia dulcis Linn

Hamidu Usman; Blessing Oluchukwu; Faisal Bello; Muhammad Tijjani; Kyari Sanda; Halima Umar; Sule Ibrahim

Volume 3, Issue 1, pp. 1-110. , Winter 2020, , Pages 1-8

http://dx.doi.org/10.33945/SAMI/AJCA.2020.1.1

Abstract
  This study reports the phytochemical constituents and anti-diarrhoeal potentials of leafextracts of Corchorus olitorius Linn. (Malvaceae) and that of aerial part of Scoporia dulcis Linn. (Lantaginaceae) in rats. Samples were collected in December, 2016 from Nnewi-ichi, Nnewi, Anambra State and Mandara-Abdu, ...  Read More

Levels of Castor Oil-Induced Diarrhoea in Rats Treated with Leaf Extract of Corchorus olitorius Linn and Aerial Part Extract of Scoporia dulcis Linn


Analytical chemistry
6. Carbon Paste Electrodes for Oxomemazine Hydrochloride: Fabrication and Evaluation

Naglaa Mahmoud Mohamed; Yousry Moustafa Issa; Nabila Shehata Mohamed; Hussein Shaban Mohamed; Sayed Abdelkader Ahmed

Volume 3, Issue 1, pp. 1-110. , Winter 2020, , Pages 24-35

http://dx.doi.org/10.33945/SAMI/AJCA.2020.1.4

Abstract
  The evaluation of oxomemazine hydrochloride (OXCl) prepared in carbon paste electrodes is reported in detail. There are many practical techniques and experiments for electrode preparation one of them is mixing of the ion-pair with ion pairing agent. Prepared  electrodes gave satisfactory data in ...  Read More

Carbon Paste Electrodes for Oxomemazine Hydrochloride: Fabrication and Evaluation


Analytical chemistry
7. Construction of modified carbon paste electrode by a new pantazene ligand for ultra-trace determination of ion silver in real samples

Mahmood Payehghadr; Samaneh Adineh Salarvand; Farzaneh Nourifard; M. Kazem Rofouei; Niloufar Bahramipanah

Volume 2, Issue 4, pp. 266-385 , Summer 2019, , Pages 377-385

http://dx.doi.org/10.33945/SAMI/AJCA.2019.4.10

Abstract
  A new ligand, 1,5-bis( para methoxyphenyl)-3- ethyl-1,4-pantaazadiene has been synthesized by reaction of the 4-methoxyaniline (p-anisidine) with ethylamine. The mixture was stirred in an ice bath for 30 min. The structure of the synthesized compound resulted from the IR and 1HNMR and 13CNMR. Afterwards, ...  Read More

Construction of modified carbon paste electrode by a new pantazene ligand for ultra-trace determination of ion silver in real samples


Analytical chemistry
8. Plasma concentration of cadmium, lead and chromium in smokers and nonsmokers in Tripoli, Libya: A comparative study

Hafsa A. Alemam; Abdounasser Omar; Magdi M. Gibali; Abdurrhman. A. Abdullaakarem; Farouq. A. Alastay; Ehabeddin. M. Elftisi; Abdulnabi Ali Abushita

Volume 2, Issue 4, pp. 266-385 , Summer 2019, , Pages 276-282

http://dx.doi.org/10.33945/SAMI/AJCA.2019.4.2

Abstract
  Tobacco products are known to contain some heavy metals that pose threats to smokers. In order to assess the role of smoking habits in increasing the plasma concentration of cadmium (Cd), chromium (Cr) and lead (Pb), a comparative study between male smokers and nonsmokers was carried out in Tripoli, ...  Read More

Plasma concentration of cadmium, lead and chromium in smokers and nonsmokers in Tripoli, Libya: A comparative study


Analytical chemistry
9. Simultaneous Determination of Amlodipine Besylate, Valsartan, and Its Related Substances in Their Film-Coated Tablets Dosage form by RP-HPLC Method

Mahmoud Abdelfatah Mohamed

Volume 2, Issue 4, pp. 266-385 , Summer 2019, , Pages 335-346

http://dx.doi.org/10.33945/SAMI/AJCA.2019.4.7

Abstract
  The current study aimed to develop and new, simple, accurate, economical and stability-indicating RP-HPLC for simultaneous estimation of Amlodipine Besylate, Valsartan and its related substances in their film-coated tablets dosage form. Chromatographic system was performed on the YMC ODS-A C18 (150 mm ...  Read More

Simultaneous Determination of Amlodipine Besylate, Valsartan, and Its Related Substances in Their Film-Coated Tablets Dosage form by RP-HPLC Method


Analytical chemistry
10. Adsorption of Cd(II) and Pb(II) Using Physically Pretreated Camel Bone Biochar

Mohamed Nageeb Rashed; Allia Abd-Elmenaim Gad; Nada Magdy Fathy

Volume 2, Issue 4, pp. 266-385 , Summer 2019, , Pages 347-364

http://dx.doi.org/10.33945/SAMI/AJCA.2019.4.8

Abstract
  In this study low cost biochar adsorbent originated from camel bone was prepared by physically treatment, and examine the developed camel bone biochar for the removal of Cd2+ and Pb2+ from their solutions. The biochar adsorbent was characterized before and after development by XRD,SEM, FT-IR, and BET ...  Read More

Adsorption of Cd(II) and Pb(II) Using Physically Pretreated Camel Bone Biochar


Analytical chemistry
11. Validated UV-Spectrophotometric Method for the Simultaneous Estimation of Pyridoxine Hydrochloride and Doxylamine Succinate in Bulk and in Pharmaceutical Dosage Form

Sangeetha Premkumar; Anandkumar Karunakaran; Vasanthi Murugesan; Jambulingam Munusamy; Ramesh Jayaprakash; Raja Murugesan

Volume 2, Issue 3. pp. 184-265 , Summer 2019, , Pages 245-255

http://dx.doi.org/10.33945/SAMI/AJCA.2019.2.245255

Abstract
  A new, simple, accurate and sensitive UV ‐ Spectrophotometric absorbance correction method has been developed for simultaneous determination of Pyridoxine Hydrochloride and Doxylamine Succinate in bulk and in combined tablet dosage form using distilled water as a solvent. The wavelengths selected for ...  Read More

Validated UV-Spectrophotometric Method for the Simultaneous Estimation of Pyridoxine Hydrochloride and Doxylamine Succinate in Bulk and in Pharmaceutical Dosage Form


Analytical chemistry
12. The Prediction of Adsorption Properties of a Solid Phase-Microextraction Fiber by Chemometrics methods

Mostafa Jafari

Volume 2, Issue 3. pp. 184-265 , Summer 2019, , Pages 203-215

http://dx.doi.org/10.33945/SAMI/AJCA.2019.2.2032015

Abstract
  A new method for estimation of adsorption properties of a solid phase microextraction fiber by artificial neural network (ANN) has been studied for the first time ever. An etched steel fiber which is simple prepared and durable was selected and adsorption of 12 analytes that were in four different chemical ...  Read More

The Prediction of Adsorption Properties of a Solid Phase-Microextraction Fiber by Chemometrics methods


Analytical chemistry
13. Mineralogy and Pollution Status of Columbite-Tin Ore Contaminated Soil

Adams Itodo; Raymond Wuana; Bulus Emmanuel Duwongs; Davoe Danbok Bwede

Volume 2, Issue 2, pp. 94-183 , Spring 2019, , Pages 147-164

http://dx.doi.org/10.29088/SAMI/AJCA.2019.2.147164

Abstract
  Mining activities are one of the numerous ways by which man impacts on his environment. In this study, two non-destructive analytical techniques (XRF and XRD) were employed in the mineralogical characterization of Columbite-Tin ore and their contaminated soils. This investigates associated unnoticed ...  Read More

Mineralogy and Pollution Status of Columbite-Tin Ore Contaminated Soil


Analytical chemistry
14. Qualitative and Quantitative Determination of Anti-Nutritional Factors of Five Wine Samples

Kingsley Ogemdi Iwuozor

Volume 2, Issue 2, pp. 94-183 , Spring 2019, , Pages 136-146

http://dx.doi.org/10.29088/SAMI/AJCA.2019.2.136146

Abstract
  This research was aimed at the qualitative and quantitative determination of three anti-nutritional factors (Oxalate, Phytate, and Tannins) present in five wine samples produced in Nigeria. The determination of tannin was done using Folin-Denis Spectrophotometric method, the determination of oxalate ...  Read More

Qualitative and Quantitative Determination of Anti-Nutritional Factors of Five Wine Samples


Analytical chemistry
15. Selective and Sensitive Simultaneous Determination of Mercury and Cadmium based on the Aggregation of PHCA Modified- AuNPs in West Azerbaijan Regional Waters

Sakineh Alizadeh; Tayyebeh Madrakian; Morteza Bahram

Volume 2, Issue 1, pp. 1-93. , Winter 2019, , Pages 57-72

http://dx.doi.org/10.29088/sami/AJCA.2019.2.5772

Abstract
  The present study aims to present a new convenient sensor for heavy metals, based on aggregation of citrate-capped- N, N' biphenyl hydrazine 1, 2 dicarbothioamide (PHCA) - modified- (AuNPs). This paper reports a procedure for sensitive and selective spectrophotometric methods for simultaneous determination ...  Read More

Selective and Sensitive Simultaneous Determination of Mercury and Cadmium based on the Aggregation of PHCA Modified- AuNPs in West Azerbaijan Regional Waters


Analytical chemistry
16. Adsorption Separation of Nickel from Wastewater by using Olive Stones

Abdel-Moneum M. Ahmed; Alaa E. Ali; Ahmed H. Ghazy

Volume 2, Issue 1, pp. 1-93. , Winter 2019, , Pages 79-93

http://dx.doi.org/10.29088/sami/AJCA.2019.2.7993

Abstract
  In this study, the adsorption potential of activated carbon olive stone for removal of Ni(II) ions from wastewater has been investigated. The study involves batch type experiments to investigate the effect of initial concentration, adsorbent dose, agitation speed, contact time, temperature and pH of ...  Read More

Adsorption Separation of Nickel from Wastewater by using Olive Stones


Analytical chemistry
17. Physico-Chemical Parameters of Industrial Effluents from a Brewery Industry in Imo State, Nigeria

Kingsley Ogemdi Iwuozor; Emuobosa Ejiroghene Gold

Volume 1, Issue 2. pp. 66-126 , Autumn 2018, , Pages 66-78

http://dx.doi.org/10.29088/sami/AJCA.2018.1.6678

Abstract
  This work examined some physicochemical parameters of effluents from a Brewery Industry in Imo state. This company discharged effluents in non-compliance with the Nigerian National Regulations as confirmed from the Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Electrical Conductivity ...  Read More

Physico-Chemical Parameters of Industrial Effluents from a Brewery Industry in Imo State, Nigeria


Analytical chemistry
18. Enhancing the performance of polysulfone ultrafiltration membranes by mixing with polyacrylic acid for canal water treatment

Mohamed Said Abdel Aal; Abdel Monem Mohamed Ahmed; Hanaa Hammam Abdel Rahman; Sherif Hussein Kandil

Volume 1, Issue 2. pp. 66-126 , Autumn 2018, , Pages 86-95

http://dx.doi.org/10.29088/sami/AJCA.2018.1.8695

Abstract
  We developed some Ultrafiltration (UF)  membranes based on polysulfone (PSF) and poly acrylic acid (PAA) mixture. The Ultrafiltration membraneswere prepared by the phase inversion technique using Dimethylformamide (DMF) as a solvent. Immobilization of PAA in PSF matrix was confirmed by Fourier ...  Read More

Enhancing the performance of polysulfone ultrafiltration membranes by mixing with polyacrylic acid for canal water treatment


Analytical chemistry
19. Simultaneous identification and determination of three different classes of pesticides in Tehran drinking water by HPLC/UV technique

Mahtab Baghban; Alireza Rezaian; Elahe Hashemi

Volume 1, Issue 2. pp. 66-126 , Autumn 2018, , Pages 79-85

http://dx.doi.org/10.29088/sami/AJCA.2018.1.7985

Abstract
  An efficient sample extraction using solid-phase extraction coupled with liquid-chromatography was studied for the analyses of three different types and chemical group pesticides from drinking water. The extraction was performed using a Waters Sep-Pak C-18 cartridge. A validation of the method was performed. ...  Read More

Simultaneous identification and determination of three different classes of pesticides in Tehran drinking water by HPLC/UV technique


Analytical chemistry
20. Determination of acetaminophen using a glassy carbon electrode modified by horseradish peroxidase trapped in MWCNTs/silica sol-gel matrix

Javad Ghodsi; Amir Abbas Rafati; Yalda Shoja

Volume 1, Issue 1, pp. 1-65 , Summer 2018, , Pages 39-55

http://dx.doi.org/10.29088/sami/AJCA.2018.5.3955

Abstract
  A new and easy to fabricate voltammetric biosensor for acetaminophen determination was developed based on horseradish peroxidase (HRP) trapped between silica sol-gel film and multi-walled carbon nanotubes on glassy carbon electrode. Acetaminophen determinations were carried out in presence of H2O2 as ...  Read More

Determination of acetaminophen using a glassy carbon electrode modified by horseradish peroxidase trapped in MWCNTs/silica sol-gel matrix