(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.
Spectrophotometer
Definition:
(n.) An instrument for measuring or comparing the intensites of the colors of the spectrum.
Example Sentences:
(1) Masticatory efficiency was measured by means of a spectrophotometer, using adenosine triphosphate (ATP) granules, the biting force and occlusal contact area.
(2) After an appropriate dilution, the released pyridine-2-thione which has a strong absorbance at 343 nm, is quantified by reading its absorbance in a spectrophotometer at 343 nm.
(3) This paper describes the properties and use of a fiber optic probe as an attachment to a spectrophotometer and its use for measurements in solutions and turbid suspensions.
(4) Cadmium and lead were determined in kidney and liver tissues of the sacrificed animals by using a trace metal analyzer and by atomic absorption spectrophotometer.
(5) The concentration-dependent association-dissociation equilibrium of the bifunctional enzyme aspartokinase I-homoserine dehydrogenase I of Escherichia coli K12 has been investigated at pH 7.6 in the presence of 10 mM L-threonine and 0.1 M KCl by equilibrium gel permeation monitored by a single-photon counting spectrophotometer.
(6) Carrier status is determined by scanning the autoradiographs with a densitometric spectrophotometer or by detection of a junction fragment.
(7) The absorbed and in the urine excreted 14C-activities are measured with a scintillation spectrophotometer and scintillator composed of 2,5-diphenyloxazole(POP), 1,4-bis-(4-methyl-5-phenyl-2-oxazolyl)benzene (dimethyl-POPOP), naphthalene, toluene and ethyleneglycol monomethylether.
(8) A spectrophotometer interfaced with a computer is used to plot the standard curve and calculate the protein content of each sample.
(9) The procedure developed enabled to use commonly employed spectrophotometers and to decrease distinctly the glutathione reductase consumption.
(10) Serum Al, Cu, Zn, Ni and Mn were measured with a flameless atomic absorption spectrophotometer.
(11) Capillary mean transit time was determined by detection of the passage of a hemodilution bolus through a region of the parietal cerebral cortical surface, using a reflectance spectrophotometer through a small craniotomy in chloral hydrate-anesthetized rats.
(12) Results obtained correlated well with those produced by our routine instrumentation (Beckman Astra, Varian atomic absorption spectrophotometer).
(13) Time-dependent changes in the ultraviolet absorbance of the adenine chromophore are observed in the stopped-flow spectrophotometer when adenosine and its analogs are rapidly transferred from protium oxide to deuterium oxide.
(14) The 412 nm complex must be present at appreciable concentrations when bacteriorhodopsin is exposed to high-energy argon ion laser light of the Raman spectrophotometer at room temperature.
(15) We have investigated the binding of fluorescein isothiocyanate (FITC)-labeled fibrinogen to platelets using a fluorescence spectrophotometer and a flow cytometer.
(16) The oxidation of reduced human ferroxidase by molecular O2 was studied in a stopped-flow spectrophotometer.
(17) The probe was calibrated for turbidimetric measurements with microorganisms by relating the apparent absorbancy measured on the spectrophotometer to the dry weight of each species of organism.
(18) An automated IR-spectrophotometer-mini-computer system was designed for assay of steroid hormone level.
(19) Then the stained cells were solubilized with 1% lauryl sulfate and the absorbance of each well was measured at 540 nm with a multiscan spectrophotometer.
(20) Difference spectra of the effect of HCo on the inhibition of cytochrome c oxidase by cyanida and azide in isolated intact mitochondria were recorded using a split beam spectrophotometer.