Theses

 

Ph.D. Thesis:

1- Quantitative determination of optical brighteners, surface active agents and preservatives in real samples using photoluminescence spectrometry, high performance liquid chromatography and chemometric methods along with photocatlytic degradation examination some of these compounds

2- Extraction, Pre-concentration, Speciation and Determination of Trace Amount of Metal Ions by Inorganic-Organic Hybrid Nano-material and Dispersive Liquid-Liquid Micro-extraction Coupled with Graphite Furnace Atomic Absorption and Photoluminescence Spectroscopy.

3-Investigation of fragrance stability used in the formulation of cosmetic and hygienic products using headspace micro-extraction pre-concentration techniques followed by gas chromatography-mass spectroscopy and chemometrics

4- Rapid identification of Champa Iranian rice volatile chemical constituents and aroma profile, by chemometrics assisted optimization of head space solid phase micro extraction pre-concentration and gas chromatography/ mass spectrometry.

5- Preparation and characterization of some metal tungstate (MWO₄, M= Ca, Ba, Cd, Co, Cu, Mn, Ni, Pb, Sr, Zn) nanostructures using wet chemical method and investigation of their photocatalytic activities in degradation of industrial organic dyes methyl orange, methylene blue and eriochrom black T

6- Ultra-trace determination of salmeterol xinafoate and propranolol drugs using pre-concentration by iron oxide magnetic nanoparticles and nanographene  oxide and separation of R and S species of propranolol racemic mixture using optical active HPLC column contain chiral alumina stationary phase.

7- Extraction of essential oil from "Satureja bachtiarica Bunge." using innovative "microwave-assisted steam hydro diffusion" method with optimization of extraction efficiency and total phenolic contents by experimental design and evaluation of its ability to inhibit cancer cells.

8- Investigation of different Preparation methods of functionalized "bio-char and activated carbon" by pistachio nutshell in order to activation of peroxy monosulfate for oxidative degradation of methyl orange, methylene blue and red 2-G dyes and also adsorption of carmoisine red dye using statistical method of experimental design along with studying the mechanisms, kinetics and thermodynamics of reactions

9- Designing and preparing colorimetric sensors based on paper substrates using gold and silver nanoparticles synthesized by the green method to identify and measure some markers and chemical species such as lactate, hydrogen peroxide, glucose and lead in biological and environmental samples.

 

MSc Thesis:

1- Determination of vitamin A palmitate and vitamin E acetate in Cosmetic creams and lotions matrix using High performance liquid chromatography (HPLC) and photoluminescence (PL) techniques.  

2- Determination of 1, 4-dioxane in some of products by two techniques “ HPLC and Head Space GC”.

3- Separation of component of cocoamidopropyl betaine surfactant as a amphoteric surfactant with use of rivers phase HPLC and investigation of agent of yellow color in raw material and products.

4- The study of catalytically decomposition of aqueous NaClO solution in presence of some metal ions, surfactants, essential oils and chelating agents.

5- New method for determination of surface active agents (surfactants) in their mixture using photoluminescence technique.

6- New method for determination of indigo in Dye bath in presence of some interfering colorant agents using photoluminescence spectrometry.

7- Characterization of the Aromatic Profile in Apple Boosted Fragrance by Gas Chromatography-Mass Spectrometry (GC/MS).

8- Pre-concentration and determination of p-chloro- m-xylenol (PCMX) in some of the health care products using dispersive liquid- liquid microextraction (DLLME) and high performance liquid-liquid chromatography (HPLC).

9- A Modified Method for Determination of Sodium tri-polyphosphate (STPP) In Synthetic Washing Powder    .Real samples s9

10- Determination of Trace amount of Sn, Pb and As metalloids in local and imported rice with HG-AAS system.

11- Pre-concentration and Determination of 1, 4-Dioxane in Mixture of  Surface Active Agents Using Dispersive Liquid-Liquid Micro Extraction (DLLME) and High Performance Liquid Chromatography (HPLC) Techniques.

12- Speciation, determination and purification of metal ions in phosphoric acid produced by Iranian military industries using electrochemical, inductively coupled plasma atomic emission spectroscopic (ICP-AES) methods and ion exchange resins.

13- Determination of low amount of 1, 4-dioxane produced in ethoxylation reactions using "fluorescence quenching" characteristic of some organic dyes.

14- Pre-Concentration of toxic metal ions Pb, Cd, Cr and Cu in green vegetables irrigated by well water and wastewater using ion-exchange resins and determination of them by flame and graphite furnace atomic absorption spectrometry and comparison of the results.

15- Identification and Determination of Tartrazine, Quinoline, Sunset Yellow, Ponceau 4R and Methyl orange as Food Dyes in Saffron Samples by Reversed-Phase Micellar Liquid Chromatography, (RP-MLC). 

16- Determination of fructose, glucose, sucrose and "total sugar" in the some fruit samples using high performance liquid chromatography (HPLC), refractometric and brix measurement methods and comparing the analytical results of these methods.

17- Quality assessment of the saffron samples using second-order spectrophotometric data assisted by three way chemometric methods via quantitative analysis of synthetic colorants in adulterated saffron

18- Determination of ethanol as a major constituent in some products contain surfactants, fragrance and other additives by refractometric method and comparison of results with other widespread analytical methods

19- Determination of concentration of gold and silver nanoparticles in aqueous systems via direct introduction to flame atomic absorption spectrometer

20- A new method for purity determination of Cocamidopropyl betaine synthesized from Coconut oil using the absorption spectra shift of Eriochrom Black T indicator and UV-Visible Spectroscopy

21- Study and measurement of decomposing rate of sodium lauryl ether sulphate in strong oxidant media contain 5 % w/w sodium hypochlorite, using high performance liquid chromatography and two phase titration

22- Stability study of Myristyl dimethylamine oxide as a nonionic surfactant in strong oxidant media containing 5 % w/w sodium hypochlorite through measurement of decomposing rate using high performance liquid chromatography and two phase titration

23- Simultaneous measurement of linear alkyl benzene sulfunate and optical brightener using photoluminescence spectrometer and chemometrics

24- A new method for purity determination of amphoteric surfactant cocamidopropyl hydroxyl sultaine synthesized from coconut oil using the absorption spectra shift of methyl orange indicator and UV-Visible spectroscopy

25- The study of atomization behavior of aqueous suspensions contain ZnO, CuO and MgO nanoparticles in comparison with aqueous solution of Zn²⁺, Cu²⁺ and Mg²⁺in flame atomic absorption spectroscopy

26- Pre-concentration and speciation of trace Cr (III) and Cr (VI) in water and tobacco samples by hollow fiber liquid phase micro extraction combined with graphite furnace atomic absorption spectrometry

27- The study of nickel oxide nanoparticles behavior as an effective chemical modifier in trace determination of lead and chromium elements by electrothermal atomic absorption spectrometry

28- Determination of lead ion species using a new Schiff base ”3- ((phenylimino) methyl)benzene-1,2-diol” as a ligand for formation of lead complex and studying its features  by UV-Visible spectroscopy

29- Speciation of Co (II) and Co (III) by complex formation with N,N'-bis(salicylidene) ethylenediamine shiff base and UV-Visible molecular absorption spectrometry

30- Selective extraction of Crocin from Saffron using magnetic nanoparticles molecularly imprinted polymer and experimental study of efficiency, isotherm and kinetics of sorption and desorption process using UV-Visible spectrophotometry and high performance liquid chromatography

31- Exprimental investigation of unconventional interaction between surface active agent-bromophenol Blue for determination of cetyltrimethylammonium chloride (CTAC) in the presence an absence of other surface active agents using UV-Visible spectra shift of indicator

32- Microextraction, pre-concentration and determination of Uranyl species using magnetic solvents and assistance of ultrasonic waves.

33-Experimental study of desorption process of malathion pesticide residues from surface of some  greenhouse fruits such as cucumber using surface active agents and molecular photoluminescence spectrometry and high performance liquid chromatography techniques.

34- Investigating the possibility of removing of sodium lauryl ether sulfate anionic surfactant in aqueous solutions using magnetic Fe₃O₄-nanoparticle loaded biochar prepared by co-precipitation method in the presence of potassium persulfate

35- Microextraction of linear alkyl benzene sulfonates on Teflon screw and separation and measurement by high performance liquid chromatography method

36- Preconcentration of trace amounts of formaldehyde from surfactant contain samples using head space microextraction by 1,8-diamino-3,6-dioxaoctane sorbent supported on nano-porous anodized aluminum wire and its kinetical measurement with brilliant green

37- Extraction of capsaicinoids from pepper extract and separation of capsaicin and dihydrocapsaicin isomers using solid phase silver nanoparticles loaded on functionalized microsilica and detection by high performance liquid chromatograph

38- Exprimental investigation of unconventional interaction between surface active agent-bromophenol Blue for determination of cetyltrimethylammonium chloride (CTAC) in the presence an absence of other surface active agents using UV-Visible spectra shift of indicator

39- Synthesis of zinc oxide nanoparticles by co-precipitation method and investigating the possibility of microencapsulation of some essential oils with the help of polymers in order to increase the life and stability of essential oils for use in skin care products.

40- Evaluation of some compounds in Spirulina algae extract in order to create volatility in order to detect some components of the extract used in products with complex formulation by headspace gas chromatography

41- Separation of glucose and lactose sugars in milk powder samples by molecular imprinted

polymer and tracking the separation efficiency by high performance liquid chromatography

42- Extraction of protein in the residues of oilseeds of sesame, hazelnut, almond and pumpkin produced in the lubrication industry for use in human and animal food industries