منابع مشابه
Straylight error in a spectrophotometer.
HE PRINCIPAL SUBJECT MATTER of this paper is the description of a thod of obtaining a calibration curve relating apparent absorbancy 81) and concentration (x). It is frequently observed that the orbancy index decreases with increasing concentration in cases in ich one would expect Beer’s law, A = log(10/I) = KX, to hold. For ample, with our instrument, the absorbancy index at 273.5 m of a lutio...
متن کاملOcular Straylight
Intra-ocular straylight can cause decreased visual functioning, and it may cause diminished vision-related quality of life (VRQOL). This cross-sectional population-based study investigates the association between straylight and VRQOL in middle-aged and elderly individuals. Multivariable linear regression analyses were used to assess the association between straylight modeled continuously and cu...
متن کاملRounding error, an unexpected fault in the output from a recording spectrophotometer: implications for model discrimination.
Although commonly ignored in discussions of experimental error, rounding may sometimes be the major source of error, especially with modern precision instruments: some recording spectrophotometers are optically and photometrically capable of making absorbance measurements with errors less than 0.0003, but provide no numerical information more precise than +/- 0.001. The problem may be diagnosed...
متن کاملSuction spectrophotometer cell.
A spectrophotometer cuvet is described which is emptied by suction without removal from the instrument. The use of this cuvet saves time and minimizes the chance of breakage. Data from C " measurements and absorbances of a dye solution show minimal retention error from successive specimens. expended in determining the absonbances of a large series of individual samples in a spectrophotometer ca...
متن کاملStraylight Measurements in Two Different Apodized Diffractive Multifocal Intraocular Lenses.
PURPOSE To evaluate differences in straylight between eyes implanted with a hydrophilic multifocal IOL (Seelens MF; Hanita Lenses, Hanita, Israel) and a hydrophobic multifocal IOL (SN6AD1; Alcon Laboratories, Inc., Fort Worth, TX). METHODS In a prospective cohort study, routinely obtained straylight measurements (C-Quant; Oculus Optikgeräte, Wetzlar, Germany) 3 months after standard phacoemul...
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ژورنال
عنوان ژورنال: Clinical Chemistry
سال: 1960
ISSN: 0009-9147,1530-8561
DOI: 10.1093/clinchem/6.4.345