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موضوع بحث:
کروماتوگرافی مایع با کارایی بالا ( HPLC )
سرفصل ها
1- توضیحی در مورد کروماتوگرافی
2- میدان عمل HPLC
3- کاربردهای کروماتوگرافی مایع
4-انواع کروماتوگرافی
5- توضیحات کلی در مورد پمپها
6- کارایی ستون در کروماتوگرافی مایع
7- آشکارسازها
توضیحی در مورد کروماتوگرافی
کروماتوگرافی لغتی یونانی به معنی رنگ نگاری است که ترکیبی از دو واژه "کروما" به معنی رنگ و "گروفین" به معنی نوشتن است. در سال 1903 برای اولین بار از این روش جداسازی مواد رنگی استفاده شد که این کار توسط میخائیل سوئت انجام گرفت. اما امروزه از این روش برای جداسازی مواد بی رنگ چون گازها استفاده می شود یکی از پرکاربردترین روش های جداسازی مواد در آزمایشگاه کروماتوگرافی است و در مواقعی که جداسازی به روش های دیگر ناممکن است به راحتی می توان از این روش استفاده کرد، زیرا اختلافات های جزئی موجود در رفتار اجسام باعث تسهیل جداسازی در جریان عبور آن ها از یک سیستم کروماتوگرافی می شود . این روش بسیار ساده و سریع است به طور مثال آزمایشی که ممکن است با استفاده از روش ستون تقطیر چندین روز به طول بینجامد، می تواند به کمک کروماتوگرافی در عرض زمانی بسیار کوتاه انجام گیرد، وسایل مورد لزوم آن نیز ارزان قیمت است .
تصویری از دستگاه HPLC
شمایی از دستگاه HPLC
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دسته بندی | عمران |
فرمت فایل | |
حجم فایل | 39989 کیلو بایت |
تعداد صفحات فایل | 300 |
73 مقاله کاربردی در مورد بتن و سازه های بتنی زبان اصلی
Models for Chloride Diffusion Coefficients of Concretes in Tidal Zone
Investigation into Yield Behavior of Fresh Cement Paste Model and Experiment
Intrinsic Model to Predict Formwork Pressure
Temperature Stability of Compressive Strength of Cement Asphalt Mortar
Effect of Filtering on Texture Assessment of Concrete Surfaces
Investigation of Alkali-Silica Reaction Inhibited by New Lithium Compound
Effect of Different Dosages of Polypropylene Fibers in Thin Whitetopping Concrete Pavements
Effect of Bottom Ash as Fine Aggregate on Shrinkage Cracking of Mortars
Polyvinyl Alcohol Fiber-Reinforced Mortars for Masonry Applications
Effect of Curing Methods on Autogenous Shrinkage and Self-Induced Stress of High-Performance Concrete
Synergistic Effect between Glass Frit and Blast-Furnace Slag
Expansion of MgO in Cement Pastes Measured by Different Methods
Critical Corrosion Threshold of Galvanized Reinforcing Bars
Potential Approach to Evaluating Soundness of Concrete Containing MgO-Based Expansive Agent
Modeling Mechanical Behavior of Reinforced Concrete due to Corrosion of Steel Bar
Interface Tailoring of Polyester-Type Fiber in Engineered Cementitious Composite Matrix against Pullout
Effects of Liquid Nitrogen Cooling on Fresh Concrete Properties
Experimental Study on Mechanical Properties of Concrete Confined with Plastic Pipe
Measurement of Oxygen Permeability of Epoxy Polymers
Effect of Age and Water-Cement Ratio on Size and Dispersion of Pores in Ordinary Portland Cement Paste
Inspection of Concrete Using Air-Coupled Ultrasonic Pulse Velocity
Compressive Strength Relationships for Concrete under Elevated Temperatures
10. رفتار خزش بتن با مقاومت بالا با الیاف پلی پروپیلن در دمای بالا
Creep Behavior of High-Strength Concrete with Polypropylene Fibers at Elevated Temperatures
11. رفتار بتن با مقاومت ویژه, مسلح شده با الیاف شیشه و مدلهای عددی
Ultra-High-Strength, Glass Fiber-Reinforced Concrete Mechanical Behavior and Numerical Modeling
12. بتن ماسه ای فشرده در روسازی یک راه حل اقتصادی و محیطی
Compacted Sand Concrete in Pavement Construction:An Economical and Environmental Solution
Early-Age Shrinkage Strains Versus Depth of Low Water-Cement Ratio Mortar Prisms
New Methodology to Proportion Self-Consolidating Concrete with High-Volume Fly
Shrinkage of Precast, Prestressed Self-Consolidating Concrete
New Viscoelastic Model for Early-Age Concrete Based on Measured Strains and Stresses
Wavelet Analysis of Ultrasonic Pulses in Cement-Based Materials
Salt Weathering of Concrete by Sodium Carbonate and Sodium Chloride
Environmental Effects on Mechanical Properties of Wet Lay-Up Fiber-Reinforced Polymer
Effects of Hauling Time on Air-Entrained Self-Consolidating Concrete
Artificial Neural Network Modeling of Early-Age Dynamic Young’s Modulus of Normal Concrete
Performance of Permeability-Reducing Admixtures in Marine Concrete Structures
Assessing Mechanical Properties and Microstructure of Fire-Damaged Engineered Cementitious Composites
Characterization of Deep Surface-Opening Cracks in Concrete Feasibility of Impact-Generated Rayleigh-Waves
Analysis of Mortar Long-Term Strength with Supplementary Cementitious Materials Cured at Different Temperatures
Influence of Chemistry of Chloride Ions in Cement Matrix on Corrosion of Steel
Corrosion Protection of Fiber-Reinforced Polymer-Wrapped Reinforced Concrete
Self-Consolidating High-Strength Concrete Optimization by Mixture Design Method
Calcium Hydroxide Formation in Thin Cement Paste Exposed to Air
Size and Wall Effects on Compressive Strength of Concretes
Correlation of Reaction Products and Expansion Potential in Alkali-Silica Reaction for Blended Cement Materials
Detection of Aggregate Clay Coatings and Impacts on Concrete
Triple Percolation in Concrete Reinforced with carbon Fiber
Performance of Cast-in-Place Self-Consolidating Concrete Made with Various Types of Viscosity-Enhancing Admixtures
12. Planar Image-Based Reconstruction of Pervious Concrete Pore Structure and Permeability Prediction
Comparison of Methods for Texture Assessment of Concrete Surfaces
Effect of Aggregate Type on Mechanical Properties of Reactive Powder Concrete
Bidirectional Multiple Cracking Tests on High-Performance Fiber-Reinforced Cementitious Composite Plates
Precision of Compressive Strength Testing of Concrete with Different Cylinder Specimen Sizes
Numerical Simulation of Stress Waves on Surface of Strongly Heterogeneous Media
Influence of Fiber Type on Creep Deformation of Cracked Fiber-Reinforced Shotcrete Panels
Suitability of Various Measurement Techniques for Assessing Corrosion in Cracked Concrete
New Method for Proportioning Self-Consolidating Concrete Based on Compressive Strength Requirements
Thermal Strain and Drying Shrinkage of Concrete Structures in the Field
Inclined Plane Test to Evaluate Structural Buildup at Rest of Self-Consolidating Concrete
Electrical Resistance Tomography for Assessment of Cracks in Concrete
Influence of Mixing Sequence on Cement-Admixture Interaction
Effect of Non-Ground-Granulated Blast-Furnace Slag as Fine Aggregate on Shrinkage Cracking of Mortars
Effect of Mixture Compositions on Workability and Strength of Fly Ash-Based Inorganic Polymer Mortar
Corrosion Process of Steel Bar in Concrete in Full Lifetime
Hybrid RotatingFixed-Crack Model for High-Performance Fiber-Reinforced Cementitious Composites
Conductive Concrete for Cathodic Protection of Bridge Decks
Instantaneous In-Situ Determination of Water-Cement Ratio of Fresh Concrete
Time Evolution of Chloride Penetration in Blended Cement Concrete
Carbon-Fiber Cement-Based Materials for Electromagnetic Shielding
Self-Healing Characterization of Engineered Cementitious Composite Materials
Effect of Aggregate Size and Gradation on Pervious Concrete Mixtures
Effect of Calcium Chloride and Initial Curing Temperature on Expansion Caused by Sulfate Exposure
دسته بندی | عمران |
فرمت فایل | |
حجم فایل | 8253 کیلو بایت |
تعداد صفحات فایل | 100 |
مجموعه 12 مقاله کاربردی در مورد بتن و سازه های بتنی زبان اصلی
High-Early-Strength Engineered Cementitious Composites for Fast, Durable Concrete Repair—Material Properties
Unified Shrinkage Model for Concrete from Autogenous Shrinkage Test on Paste with and without Ground-Granulated Blast-Furnace Slag
Evaluation of Autogenous Deformation of Concrete at Early Ages
Influence of Surface Crack Width on Bond Strength of Reinforced Concrete
Simple Analytical Model for Formwork Design of Self-Consolidating Concrete
Ultra-High Performance Concrete with Compressive Strength Exceeding 150 MPa (22 ksi) A Simpler Way
Prediction of Efficiency Factor of Ground-Granulated Blast- Furnace Slag of Concrete Using Artificial Neural Network
Engineering Properties of Alkali-Activated Natural Pozzolan Concrete
Effectiveness of Mixing Time on Hardened Properties of Waterglass-Activated Slag Pastes and Mortars
Failure Behavior of Concrete Cylinders under Different End Conditions
Prediction of Equivalent Steady-State Chloride Diffusion Coefficients
Damage Behavior of Yarn Embedded in Concrete Using Acoustic Emission Analysis