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used to separate particles dispersed in a liquid according to their molecular mass: Electrophoresis apparatus: used to detect and classify serum proteins or proteins from any other source; also used for DNA separation Chromatography: • Gas chromatography or Gas liquid chromatography (GLC) • Planar chromatography • Paper chromatography
A questionnaire is a research instrument that consists of a set of questions (or other types of prompts) for the purpose of gathering information from respondents through survey or statistical study. A research questionnaire is typically a mix of close-ended questions and open-ended questions.
Historically, the definition of a scientific instrument has varied, based on usage, laws, and historical time period. [1] [2] [3] Before the mid-nineteenth century such tools were referred to as "natural philosophical" or "philosophical" apparatus and instruments, and older tools from antiquity to the Middle Ages (such as the astrolabe and pendulum clock) defy a more modern definition of "a ...
Military instruments as a class draw on most of the categories of instrument described throughout this article, such as navigation, astronomy, optics, and imaging, and the kinetics of moving objects. Common abstract themes that unite military instruments are seeing into the distance, seeing in the dark, knowing an object's geographic location ...
Instrument Uses Flow cytometer: used for automated cell counting as in total blood count, differential count, etc. Tissue bath or organ bath or Dale's apparatus: used in full tissue experiments, for example using guinea pig ileum mainly used in pharmacology for application of drugs to these tissues. Sahli Haemoglobinometer
1 Instrument list. 2 Image gallery. 3 References. ... This list is incomplete; you can help by adding missing items. (August 2008) Instrument list. Instrument
SERVQUAL is a multidimensional research instrument designed to measure service quality by capturing respondents' expectations and perceptions along five dimensions of service quality. [2] The questionnaire consists of matched pairs of items - 22 expectation items and 22 perceptions items - organised into five dimensions which are believed to ...
Instrument Uses Instruments used in Internal medicine: to help treat and diagnose the toxin clinically Syringe and needles: aspiration and collection of blood for chemical analysis; administration of medicines: Catheter: used to collect urine for chemical analysis Enema set: to passively evacuate the rectum of faeces; video link: Lumbar ...