any instrument for determining the refractive index of a substance
Derived forms
refractometric (rɪˌfræktəˈmɛtrɪk)
adjective
refractometry (ˌrefracˈtometry)
noun
refractometer in American English
(ˌrifrækˈtɑmətər)
noun
an instrument for measuring refraction, as of the eye
refractometer in American English
(ˌrifrækˈtɑmɪtər)
noun
Optics
an instrument for determining the refractive index of a substance
Derived forms
refractometric (rɪˌfræktəˈmetrɪk)
adjective
refractometry
noun
Word origin
[1875–80; refract + -o- + -meter]This word is first recorded in the period 1875–80. Other words that entered Englishat around the same time include: Diaspora, authoritarian, cross-fertilization, musical chairs, overdraft-o- is the typical ending of the first element of compounds of Greek origin (as -i- is, in compounds of Latin origin), used regularly in forming new compounds with elementsof Greek origin and often used in English as a connective irrespective of etymology(Franco-Italian; geography; seriocomic; speedometer); -meter is a combining form meaning “measure,” used in the names of instruments measuringquantity, extent, degree, etc. Other words that use the affix -meter include: chronometer, interferometer, micrometer, nephelometer, radiometer
Examples of 'refractometer' in a sentence
refractometer
The refractive errors were measured using an auto refractometer and were confirmed by trial.
Tamer Adel Refai, Olfat A. Hassanin 2016, 'Refinement of Intraocular Pressure Measurements made by Ocular Response Analyzer followingLaser in Situ Keratomileusis using M2 90 Moria Microkeratome for Egyptian Myopic andAstigmatic Patients', Electronic Physicianhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC5279978/. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Total sugar content was determined as the brix value on a refractometer.
Terzić Sreten, Atlagić Jovanka 2009, 'Nitrogen and sugar content variability in tubers of Jerusalem artichoke (Helianthustuberosus)', Genetikahttp://www.doiserbia.nb.rs/img/doi/0534-0012/2009/0534-00120903289T.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Here, we demonstrate an absolute gas refractometer by spectral interferometry and a high-resolution spectrometer.
Lijun Yang, Yan Li, Haoyun Wei 2018, 'High-precision gas refractometer by comb-mode-resolved spectral interferometry', Scientific Reportshttp://link.springer.com/article/10.1038/s41598-018-34641-y. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Few comprehensive performance evaluations are available demonstrating refractometer capability from a clinical laboratory perspective.
Sara P. Wyness, Joshua J.H. Hunsaker, Taylor M. Snow, Jonathan R. Genzen 2016, 'Evaluation and analytical validation of a handheld digital refractometer for urinespecific gravity measurement', Practical Laboratory Medicinehttp://www.sciencedirect.com/science/article/pii/S2352551716300178. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In the juice obtained, three readings in a digital refractometer were made.
JAEVESON DA SILVA, ELIVÂNIA SOARES DA SILVA, PAULO SÉRGIO LIMA E SILVA 2002, 'Determinação da qualidade e do teor de sólidos solúveis nas diferentes partes do frutoda pinheira (Annona squamosa L.) Determination of the quality and soluble solids contentat different parts of custard apple (Annona squamosa L.) fruit', Revista Brasileira de Fruticulturahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452002000200057. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The results of our approaches show good agreement with the refractometer data.
Christoph Meichner, Andreas E. Schedl, Christian Neuber, Klaus Kreger, Hans-WernerSchmidt, Lothar Kador 2015, 'Refractive-index determination of solids from first- and second-order critical diffractionangles of periodic surface patterns', AIP Advanceshttp://dx.doi.org/10.1063/1.4928654. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Comparison assays included a manual refractometer and an automated biuret assay.
Joshua J.H. Hunsaker, Sara P. Wyness, Taylor M. Snow, Jonathan R. Genzen 2016, 'Clinical performance evaluation of total protein measurement by digital refractometryand characterization of non-protein solute interferences', Practical Laboratory Medicinehttp://www.sciencedirect.com/science/article/pii/S2352551716300233. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The fermentation fluid was then distilled and tested for bioethanol using a refractometer.
Sutarno, Kholiq Abdul Malik 2018, 'Utilization of robusta coffee waste as a renewable energy material - bioetanol', MATEC Web of Conferenceshttps://doi.org/10.1051/matecconf/201815401004. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)