refractometry's examples

  • A guide to using the refractometer -- Background and Theory The most widely used wavelength of light for refractometry is the sodium D line at 589 nm. — “Refractometry: Theory”,
  • Event will feature the Dawn static light scattering, DynaPro dynamic light scattering (DLS), Optilab refractometry and ViscoStar viscometry instruments alongside the complete range of Astra software. — “A light scattering of products at Pittcon 2006: News from”,
  • Refractometry. The refractive index is a physical property that is characteristic of a pure compound. Like a melting point, it can be used to confirm the identity of a compound, or to assess its purity, by comparison with a known (literature) value. Principles of Refractometry. — “Refractometry”,
  • Rainbow refractometry is a non-intrusive measuring technique to determine the refractive index of droplets as presented information about both the composition and the temperature of a droplet can be obtained by rainbow refractometry. — “Determination of the composition of multicomponent droplets”,
  • Definition of refractometry from The American Heritage Medical Dictionary. — “refractometry - Medical Definition”,
  • Photometric immersion refractometry: a method for determining the refractive index of marine microbial particles from beam attenuation Photometric immersion refractometry is a technique for determining the refractive index of particulate material. — “Optics InfoBase: Applied Optics - Photometric immersion”,
  • Refractive index, Brix and concentrations - LiquiPhysicsTM Excellence offers reliable Play the game & win a song! Clean the laboratory. as fast as you can!. — “Refractive index, Brix and concentrations - LiquiPhysicsTM”,
  • In the current study, serum TS refractometry results were compared between duplicate samples that were Two refractometry instruments did not yield significantly different serum TS results. — “A comparison of serum harvesting methods and type of”,
  • Refractometry information including symptoms, causes, diseases, symptoms, treatments, and other medical and health issues. — “Refractometry - ”,
  • refractometry ( ′rē′frak′tämətrē ) ( optics ) The measurement of the index of refraction of a substance; it is an important tool in ***ytical. — “Refractometry: Definition from ”,
  • Refractometry has been a major tool in the chemical laboratory to determine concentrations of solutions and as an aid in identifying unknown The article by Bauer et. al. also gives an extensive discussion of the types of physical and molecular information obtainable by refractometry. — “The Chemical Refractometer”,
  • Definition of refractometry in the Medical Dictionary. refractometry explanation. Information about refractometry in Free online English dictionary. What is refractometry? Meaning of refractometry medical term. What does refractometry mean?. — “refractometry - definition of refractometry in the Medical”, medical-
  • Refractometry is the method of measuring substances' refractive index (one of their fundamental physical properties) in order to, for example, assess their composition or purity. A refractometer is the instrument used to measure refractive index ("RI". — “Refractometry - Wikipedia, the free encyclopedia”,
  • refractometry definition from the mondofacto online medical dictionary. — “refractometry - Definition”,
  • Refractometry is the technique that measures how light is refracted when it passes through a given substance Refractive index. — “Innocal Solutions: Refractometer calibration, Atago, Brix”,
  • Labx Direct Density And Refractometry , , Suppliers, Companies, Manufacturers, Exporters & Importers. — “Labx Direct Density And Refractometry - Suppliers, Companies”,
  • Microscale Density And Refractometry. INTRODUCTION. In this experiment, the density of an unknown liquid will be determined using microscale not depend on the amount of the substance. The water in a single drop of water has the same. density as the water in a 5-gallon pail of water,. — “Microscale Density And Refractometry”,
  • Aspects of the topic refractometry are discussed in the following places at Britannica. Another category of spectral ***ysis in which the incident radiation changes direction is refractometry. — “refractometry (chemistry) -- Britannica Online Encyclopedia”,
  • Simple reflection techniques for optical parameter determination of isotropic or anisotropic multilayers on a lower refractive index substrate are presented here. In case of weak absorption in at Refractometry, Maksymilian Pluta; Mariusz Szyjer, Editors, pp.164-173. — “Refractometry of weakly absorbing multilayers via”,
  • BARNES & NOBLE: Optics, Retinoscopy, and Refractometry by Al Lens - Save up to 90% on Used and 30% on New - FREE Shipping. Also available eTextbooks & Textbook Rentals. — “Optics, Retinoscopy, and Refractometry, (1556427484), Al Lens”,
  • Definition of refractometry in the Online Dictionary. Meaning of refractometry. Pronunciation of refractometry. Translations of refractometry. refractometry synonyms, refractometry antonyms. Information about refractometry in the free online. — “refractometry - definition of refractometry by the Free”,
  • Medical definition for the term 'refractometry' The information shown above for refractometry is provided by Stedman's. Our medical terminology dictionary contains over 100,000 medical terms that can be accessed quickly and easily. — “Refractometry -- Medical Definition”,
  • Refractometry—This is the indirect measure of the concentration of dissolved components which influence the refractive index of a sample of solution. Refractometry can also be used to monitor the build up of soils and concentration of a solution as a result of water evaporation. — “Critical Cleaning - Alconox, Inc.: Chemistry Bath-life”,

related images for refractometry

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  • Photo 3 The stage is lowered the grain boundary is out of focus and the Becke line is visible outside the grain
  • Spatial responsivity scan of an irradiance meter with 157 nm pencil beam from SURF III UV Fourier Transform Spectrometry A new beamline is presently under construction dedicated towards interferometric refractometry A UV Fourier transform spectrometer in conjuction with
  • Photo 1 The grain is in focus with the Becke line lying at the grain boundary
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  • 원심분리기 이론과사용방법참고하시고 많은 도움이 되였으면 감사합니다제 11 장 원심분리11 1 개요생물분리공정에서 고체 액체상의 분리의 첫 단계로 많은 경우 원심분리를 사용한다 원심분리는 고체와 고체를 둘러싼 액체 간의 밀도차를 이용한다 부유물이 있는 현탁액을 가만히 두면 밀집한 고체는 중력의 영향으로 서서히 가라앉게 되는데 이러한 과정이 침전 sedimentation 이다 서서히 침전되는 것을 원심력을 이용하여 가속하는 과정을 원심분리 centrifugation 라 한다 따라서 침전과 원심분리는 유사하다 침전 sedimentation 에 비해 원심분리는 다음과 같은 장단점을 가지고 있다 원심분리는 공정을 계속적으로 반복할 수 있고 많은 양을 짧은 시간안에 처리할 수 있으며 멸균상태에서 조업이 용이하다 그러나 설치자본 및 유지비용이 많이 들며 에너지 소모가 많고 슬러리 slurry 형태의 농축 등이 문제점이 될 수 있다 원심분리는 산업적으로 생물적 분리의 첫번째 단계로써 사용되어진다 예를 들면 발효된 맥주로 부터 불용성 물질을 제거하는 단계에서 사용된다 이 방법은 0 2 ml의 적은 양에서부터 수천 리터에 이르기까지 가능하고 속도와 온도차를 5 의 오차에서 조절할 수 있다 원심분리는 세포내 소기관의 분리 또는 세포내 물질 분리에도 이용된다 그러나 세포내의 분자들을 구별하여 정제하는 것은 세포와 생산물을 분리하는 것 보다 더 힘들다 그래서 원심분리는 DNA 재조합기술의 발전과 함께 더욱 더 중요한 분리공정이 되어지고 있다 11 2 원심분리 이론고체 입자가 고정된 공간 예를 들면 유체를 통과해 갈 때 그것의 속도는 부력과 마찰력에 영향을 받게 된다 즉 원심분리시에 입자가 유체 내에 있으면 부력으로 인해 입자에 작용하는 원심력이 일부 감소한다 그리고 유체 내에서 입자가 이동하면 이동에 반대하는 마찰력이 작용한다 그러므로 원심력장에서 입자에 작용하는 모든 힘의 관계는 아래와 같다 원심력 = 부력 + 마찰력 11 1 FC = FB + FD 11 2 그림 11 1 유체 내의 입자에 미치는 힘원에서의 운동하는 입자의 힘은F = γω2 11 3 으로 나타내어진다 여기서 γ은 회전축으로부터 입자까지의 거리이며 ω는 각속도 rad sec 이다 원심력 Fc는 입자의 질량 m을 곱한 값으로Fc = mω2γ 11 4 으로 나타내어진다 여기서 고체 입자가 구의 형상을 하고 있다고 가정할 때 입자의 질량 m은 밀도와 부피의 곱으로 나타내어진다 11 5 따라서 원심력 Fc는Fc = ρpω2γ 11 6 로 표시된다 부력을 Fb라 하면Fb = ω2γ 11 7 으로 표시되며 마찰력 Fd는 Fd = 3πμDv 11 8 으로 나타내어진다 여기서 D는 구의 지름 ρp와 ρ는 구 입자 와 유체의 밀도 μ는 점도 v는 구의 속도이다 식 11 2 를 식 11 6 11 7 11 8 을 이용하여 재배열하면 다음과 같다 ρpω2γ = ω2γ + 3πμDv 11 9 식 11 9 에서 원심분리시 입자의 속도 v는 11 10 으로 나타내어 진다 여기서 ω는 각속도로서 rad sec 이며 γ은 원심분리기로부터의 반지름이다 원심분리 영역안에서 입자의 행동은 침강계수 sedimentation coefficient 로 설명하기도 하는데 침강계수는 11 11 으로 표현된다 S의 단위는 sec로 표시하며 1 s는 10 13 sec로 정의된다 상대원심력 relative centrifugal force RCF 는 각속도 ω의 측정이 불편하므로 11 12 인 관계식을 이용하여 단위시간당 회전수 N rpm 의 형태로 표현하여 나타낸다 RCF = 11 13 = 1 119 × 10 5 N2γ상대 원심력 RCF는 g 형태로 나타내며 x g 으로써 표기된다 11 3 원심분리 방법1 편차 원심분리 differential centrifugation 원심분리를 할 때 가장 큰 입자가 먼저 침전되고 질량과 밀도가 같을 때는 보다 구형의 입자가 비대칭형 입자보다 빨리 침전된다 그리고 원심분리의 속도나 시간을 증가시키면 상대적으로 작은 입자들도 침전된다 그림 11 2 편차원심분리는 크기
  • RELIEF the degree to which a mineral grain or grains appear to stand out from the mounting material whether it is an immersion oil Canada balsam or another mineral When examining
  • Department of Physics by Google Earth | Physics in NTUA map | Transportation NTUA | |
  • Optical sensing A second direction of research we have recently adopted is the refractometry of turbid media i e non transparent highly scattering media such as milk animal tissue petroleum products
  • see Precision Interferometer Fig 2 The presents of the test gas causes a length change of the sample by compression This and other corrections have to be
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  • When the RI of the mineral and the RI of the mounting material are equal the Becke line splits into two lines a blue line and an orange line In order to see the Becke line the microscope is slightly out of focus the grain appears fuzzy and the two Becke lines
  • to the determination of air refractivity using an empirical equation which requires much better homogeneity of air parameters within the interferometer chamber Fig 1 The determination of the interference fractions is similar as in measurements of the length of gauge blocks i e the
  • lamps with the discrete wavelengths 404 7 nm Hg nh 435 8 nm Hg ng 479 99 nm Cd nF 508 6 nm Cd 546 07 nm Hg n e 589 nm Na nD or 643 85 nm Cd nC are used Fig 2 The precision goniometer for the measurement of refractive indices and angles here shown with a hollow prism for liquids The refractive indices are indicated
  • If nmin > noil the cone diverges above the mineral By changing focus the movement of the Becke line can be observed If focus is sharp such that the grain boundaries are clear the Becke line will coincide with the grain boundary
  • Zouboulis Ilias jpg

related videos for refractometry

  • Refractometry Demonstrated by Mark Niemczyk, PhD
  • Wave Properties of Light. Interference. Wave Properties of Light. Interference.Such phenomena as interference, diffraction and dispersion of light determine the wave properties of light.Interference of light means the coherent light waves overlap. As a result in some places the light is minimum intensive, while in the other place it can be maximum intensive. Besides, the light energy is shifted in space.The main condition for observing interference of waves is their coherence.Light waves are called coherent, if their phase difference remains constant over time.The general principle of interference can be put as follows: it is necessary to ensure that the waves from each atom overlap. Each wave emitted by an individual atom is coherent with itself, since it is a piece of a sine wave. If such waves are imposed on themselves, interference can be observed. Thus, the first and overall rule to observe light interference is as follows:The light beam coming from one source should be in some way divided into two or more beams (the beams will be coherent with each other), and then get them to overlap.The maximum waves intensity will occur at points where the following condition is fulfilled:There will be the minimum intensity at the points where the following condition is fulfilled:The phenomenon of light interference is widely used in modern technology. For example, it is used for the"enlightened" optics.To reduce light losses in optical devices all glass items that light goes through are covered by film with the ...
  • Bellingham_Stanley_Refractometer_h.mpg www.mustard- Bellingham & Stanley (Food & Beverage Team - Pitch)
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Blogs & Forum
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  • “Refractometry: This method is used for estimating plasma protein (including fibrinogen) Biuret Method: This is the colorimetric method used on the automated chemistry ***yzer”
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  • “Alconox, Inc. manufactures a full line of critical cleaning detergents for a wide range of hard surface cleaning applications. Refractometry can also be used to monitor the build up of soils and concentration of a solution as a result of water evaporation”
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