What's the difference between cuvette and spectrometer?

Cuvette


Definition:

  • (n.) A pot, bucket, or basin, in which molten plate glass is carried from the melting pot to the casting table.
  • (n.) A cunette.
  • (n.) A small vessel with at least two flat and transparent sides, used to hold a liquid sample to be analysed in the light path of a spectrometer.

Example Sentences:

  • (1) Membranes were sandwiched between two gas-permeable, plastic foils, placed in a sealed cuvette, and gassed with H2 as reductant or O2 as oxidant.
  • (2) The measured cardiac output is compared with values of cardiac output simultaneously determined using a cuvette densitometer.
  • (3) A monolayer of red cells was placed in a closed reaction cuvette set on a microscope stage, a light beam of 5 to 10 mum in diameter was directed into one of the red cells, and the light transmission change in the cell was analyzed.
  • (4) Tests of the wedge cuvette method with Evans Blue and Malachite Green serial dilutions as well as with haemoglobin solutions at several oxygen saturations demonstrate that accuracy of the order of 1% can be obtained.
  • (5) In purification procedures with microbial collagenases many fractions were tested by overnight incubations in disposable cuvettes.
  • (6) In this photometric platelet aggregation test (PAT III) a small amount (0.6 ml) of platelet-rich plasma (PRP) is being rotated in a disc-shaped cuvette at 20 rpm, at 37% C. Changes in optical density of PRP which are induced by the formation of platelet aggregates are continuously registered using a chart recorder.
  • (7) Combination of the photometers with a "cuvette test" produced satisfactory results on comparison with a reliable reference method.
  • (8) Initial experiments whereby diluted tear samples were incubated with special polyacrylate ELISA microcuvettes showed no binding of tear-lactoferrin to the cuvettes whereas a marked binding of purified lactoferrin could be observed.
  • (9) A peristaltic pump, a controlled-temperature water bath, and a spectrophotometer with flow cuvette are the only special apparatus required.
  • (10) Illumination with a medium-wave uv lamp of samples placed in disposable, dual pathlength, polystyrene fluorescence cuvettes allows treatment of small sample volumes (greater than or equal to 100 microliters) of various optical density.
  • (11) Two microliters, or less, of blood is diluted with an ammonium hydroxide solution directly in the measuring cuvette.
  • (12) Specimens can be homogeneously Feulgen-stained if a high constancy of temperature is realized in the staining cuvette during acid hydrolysis.
  • (13) As the instrument spins the rotor, capillary and rotational forces process the blood into diluted plasma, distribute the patient's diluted sample to cuvettes containing the reagent beads, and mix the diluted sample with the reagents.
  • (14) Very small PVC-matrix ISE with internal diameters as small as 0.035 inches were constructed and used in combination with small cuvettes, so that measurements could be carried out in 250 muL of stirred solution.
  • (15) To evaluate accuracy, the dye-dilution (cuvette) method was simultaneously employed in some subjects.
  • (16) Peritoneal mast cells from rat were co-incubated in vitro in a platelet aggregometer cuvette with washed rabbit platelets.
  • (17) The mixing chamber houses a disposable plastic cuvette stirred with a magnetic stirrer.
  • (18) The space in the cuvette prevented the red cells from drying thereby providing favorable physiological conditions during measurements.
  • (19) When dithionite-reduced enzyme sits in an open cuvette, the enzyme returns to the oxidized state, and the fluorescence maximum shifts back to 328 nm.
  • (20) The AO cuvette is very suitable for use in this measurement, since this method requires less than 15 microliters of serum.

Spectrometer


Definition:

  • (n.) A spectroscope fitted for measurements of the luminious spectra observed with it.

Example Sentences:

  • (1) The experimental results for protein preparations of calmodulin in which Ca2+ was isomorphically replaced by Tb3+ were obtained by a spectrometer working at the Institute of Nuclear Physics.
  • (2) The pyrolytic conversion of N-protected peptide dimethyltrideuteromethyl anilinium salts to their methyl esters in the direct insertion probe of a mass spectrometer was found to be most suitable for the derivatization of such dipeptide mixtures.
  • (3) Features of this spectrometer which make it more suitable than the previously employed scintillation spectrometers for the observation of granulocyte and other chemiluminescent systems include; (1) the ability to measure CL immediately upon reaction initiation; (2) simplicity of photomultiplier tube exchange; and (3) built-in optical filter holders for spectral analysis.
  • (4) The persistency of elution over long time after subsequent transfer to fresh water was calculated at 210 nm absorbance with ultra violet spectrometer.
  • (5) This investigation was designed to determine the accuracy of a clinical system, which included 12 ICU bedside stations monitored by a medical mass spectrometer (Perkin-Elmer RMS III, Pomona, CA).
  • (6) It uses neutron irradiation and subsequent measurements of helium 3 and helium 4 in a static mass spectrometer.
  • (7) The aim of this study is to employ an energy dispersive X-ray spectrometer (EDS) in developing a computer software system for the quantitative analysis of elemental concentrations in biological specimens.
  • (8) The mixture is lyophilized, converted into the penta-trimethylsilyl-methyloxime derivative and subjected to analysis with a combined gas chromatograph - mass spectrometer equipped with a MID-unit (multiple ion detector).
  • (9) The isotope effects are measured by the remote label method, using an isotope ratio mass spectrometer for analysis.
  • (10) The conversions to benzodiazepines were confirmed by a comparison of retention times on a gas chromatograph as well as through the use of a GC-mass spectrometer.
  • (11) However, there is evidence using urinary drop spectrometer data which makes one suspect that megestrol does have a positive effect.
  • (12) Muscle pO2, pCO2, and pAr were measured using a Teflon membrane catheter-mass spectrometer system.
  • (13) A small bolus of each of the tracer gases was injected within 1 ms into a constant airflow at the inlet of the model, and the bolus dispersion curve was measured at the outlet by means of a mass spectrometer.
  • (14) Prior to termination of incubation, cultures were labeled with 1 muCi of [3H]thymidine and, after harvesting, assayed for [3H]thymidine incorporation in DNA by a liquid scintillation spectrometer.
  • (15) A grand-scale mass spectrometer with high mass resolution and high transmission was employed for the analysis of haemoglobin variant.
  • (16) The ion content of heart tissue was measured with flame spectrometer after the decomposition of myocardium by Lumatom tissue solubizer.
  • (17) An atomic emission detector, consisting of a microwave-induced helium plasma and atomic emission spectrometer, has been used for the gas chromatographic analysis of pesticides.
  • (18) Scanning mass spectrometers suffer from the disadvantage of monitoring only one mass at any particular time in contrast to mass spectrographs which allow the simultaneous detection of an extended mass range.
  • (19) Oxygenation in the tibialis anterior muscle was measured using a medical mass spectrometer.
  • (20) The enrichment of labeled phenylalanine was analyzed by using a gas-chromatograph mass spectrometer, following a primed infusion of the isotope for 6 h. The whole-body protein synthesis of laying hens fed diets deficient in amino acids was significantly lower than that of control hens.