임상화학 기기분석법 보고서

본 내용은 " 임상화학 기기분석법 보고서 " 의 원문 자료에서 일부 인용된 것입니다. 2024.01.10

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• 1. Ion-exchange chromatography (이온교환크로마토그래피)

  이온 교환 크로마토그래피(Ion Exchange Chromatography, IEC)는 전하 차이를 이용하여 화학종을 분리하는 방법입니다. 양이온은 양이온-교환물질(교환체)에, 음이온은 음이온-교환물질에 의해 분리됩니다. 이온교환크로마토그래피는 원하지 않는 이온을 제거하고 원하는 이온을 농축하는 데 사용됩니다.

• 2. HPLC(High perfomance liquid chromatography, 고속액체크로마토그래피)

  HPLC는 고압 또는 고속액체크로마토그래피라고도 불리며, 고속 고성능 분리가 가능한 충진제를 사용하여 고압으로 분리를 수행합니다. 펌프, 시료 주입부, 분석칼럼, 검출기 등으로 구성되며, 0.5~2mL/min의 속도로 이동상을 연속적으로 분석칼럼으로 보냅니다.

• 3. Electrophoresis (전기영동)

  전기영동법은 단백질의 분리 분석법으로, 단백질의 등전점을 기준으로 pH에 따라 양극 또는 음극으로 이동하게 하여 단백질을 분리합니다. 자유전기영동법과 지지체 전기영동법이 있으며, 지지체 전기영동법은 열의 대류가 적고 분리능이 좋습니다.

• 4. Affinity chromatography (친화성 크로마토그래피)

  친화성 크로마토그래피는 항원-항체, 효소-기질, 수용체-리간드 등의 특이적인 상호작용을 이용하여 생화학 혼합물을 분리하는 방법입니다. 원하는 단백질이 고정상 비드에 결합하고, 이를 용출하여 분리할 수 있습니다.

• 5. Immunoassay (면역측정법)

  면역측정법은 항원-항체 반응의 특성을 이용하여 미량의 항원이나 항체를 측정하는 방법입니다. 침강법, 응집법, 효소면역측정법, 화학발광면역측정법, 형광면역측정법 등이 있으며, 자동화에 적합한 검사법으로 널리 사용됩니다.

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• 1. Ion-exchange chromatography (이온교환크로마토그래피)

  Ion-exchange chromatography is a powerful analytical technique used to separate and purify charged molecules, such as proteins, nucleic acids, and ions, based on their net charge. This method relies on the reversible interaction between the charged analyte and the oppositely charged functional groups immobilized on the stationary phase. The key advantage of ion-exchange chromatography is its ability to achieve high resolution separation and efficient purification of target molecules from complex mixtures. By carefully selecting the appropriate ion-exchange resin and optimizing the buffer conditions, researchers can selectively bind and elute the desired analytes, making this technique widely applicable in various fields, including biochemistry, analytical chemistry, and biotechnology. The versatility and high-performance capabilities of ion-exchange chromatography have made it an indispensable tool in the characterization, purification, and analysis of a wide range of biomolecules and ionic species.

• 2. HPLC(High perfomance liquid chromatography, 고속액체크로마토그래피)

  HPLC, or high-performance liquid chromatography, is a powerful analytical technique that has revolutionized the separation, identification, and quantification of a wide range of chemical and biological compounds. This method utilizes high-pressure pumps to force a liquid mobile phase through a stationary phase packed with small, uniform particles, allowing for efficient and rapid separation of complex mixtures. The key advantages of HPLC include its high resolution, sensitivity, and reproducibility, making it a versatile tool for applications in various fields, such as pharmaceutical analysis, environmental monitoring, food science, and biochemistry. By carefully selecting the appropriate column, mobile phase, and detection method, researchers can achieve precise and accurate separation and quantification of target analytes, even in the presence of complex matrices. The continuous advancements in HPLC instrumentation, such as the development of ultra-high-performance liquid chromatography (UHPLC), have further improved the speed, efficiency, and sensitivity of this technique, making it an indispensable tool in modern analytical laboratories.

• 3. Electrophoresis (전기영동)

  Electrophoresis is a fundamental analytical technique used to separate and analyze charged biomolecules, such as proteins, nucleic acids, and ions, based on their differential migration in an electric field. This method relies on the principle that charged particles will move towards the electrode of opposite charge when an electric potential is applied. Electrophoresis has a wide range of applications, including the separation and purification of proteins, DNA and RNA analysis, and the characterization of complex biological samples. The versatility of electrophoresis is further enhanced by the development of various techniques, such as gel electrophoresis, capillary electrophoresis, and isoelectric focusing, each with its own unique advantages and applications. The high resolution, sensitivity, and reproducibility of electrophoretic methods have made them indispensable tools in fields like molecular biology, biochemistry, and clinical diagnostics. Continuous advancements in electrophoresis, including the integration with other analytical techniques and the automation of sample processing, have further expanded the capabilities of this powerful analytical tool.

• 4. Affinity chromatography (친화성 크로마토그래피)

  Affinity chromatography is a powerful separation technique that exploits the specific and reversible interactions between a target molecule and a ligand immobilized on a solid support. This method allows for the selective capture, purification, and isolation of biomolecules, such as proteins, enzymes, antibodies, and nucleic acids, from complex mixtures. The key advantage of affinity chromatography is its high selectivity, as the target analyte is specifically bound to the ligand, while other unwanted components are washed away. By carefully designing the ligand and optimizing the buffer conditions, researchers can achieve highly efficient and selective purification of target biomolecules, even from crude samples. Affinity chromatography has found widespread applications in various fields, including biochemistry, biotechnology, and pharmaceutical research, where it is used for the purification of therapeutic proteins, the identification of protein-protein interactions, and the development of diagnostic assays. The versatility and high-performance capabilities of affinity chromatography have made it an indispensable tool in modern analytical and preparative techniques.