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700 MHz NMR spectrometer

Description: 700 MHz NMR spectrometer

Technical specification: 9.4 Tesla permanent magnetic field . Room temperature homogeneity outdoor activities ( shim ) system for optimal magnetic field homogeneity needed for 1D , 2D and 3D experiments without rotation of the sample cuvette , and not less than 20 orthogonal gradient control. Not less than 2 equivalent and interchangeable frequency channels of communication with the full wide -frequency generation in each , and the minimum interval for each channel 6-430 MHz Complete digital phase and amplitude of the best generation of long-term stability to achieve Digital real- time compensation The required frequency change: steps < 0.01 Hz Phase change: steps < 0.01 Grad, with no more than 25 ns duration Radio frequency system output signal phase singalong / accuracy by changing the power attenuation ( monotony ): not more than / - 0.5 and 90 dB power conversion range. Individual and / or along the phase , frequency and / or amplitude of the event time : no more than 25 ns Impulse control temporal resolution of 12.5 ns or less Software -controlled variable temperature unit , the temperature change of 0.1 ° C increments  . Temperature changes in the range - 150 to 180 ° . a) 5 mm head with actively shielded Z - gradient, can apply monitoring / irradiation of the NMR core range from 15N to 31P ( below) as well as 1H and 19F . Automatic selection, setting and atitaikymas all clusters interval from 15N to 31P . The ability to record the 1H and 19F spin interactions termination and vice versa . The minimum required parameters : Signal / Noise: 19F sensitivity ≥ 350:1 (TFT sample , the 1H interactions termination ) 31P sensitivity ≥ 150:1 ( TPP sample) 13C sensitivity ≥ 190:1 (ASTM test) 15N sensitivity ≥ 25:1 (90 % formamide sample) 1H sensitivity ≥ 450:1 (0.1 % EC sample , 200 Hz) Temperature changes at the interval narrower than from - 150oC to 150 oC . b ) CP / MAS head 15N - 31P , 1H ; Rotor size 4 mm, rotation frequency up to 15 kHz; shall be accompanied by a pneumatic module for precise spin speed , transfer MAS rotor system . The head must be compatible with automatic sample changer. Temperature changes in the range of -50 ° C to 80 ° C .

Usage area: for recording NMR spectra from solutions in various temperatures. 1H NMR, 13C NMR, 31P NMR, DEPT, INEPT, COSY, TOCSY, NOE, 13C HSQC, 13C HMBC.

Keywords: Nuclear magnetic resonance NMR, COSY, DEPT, HMBC, HSQC, NOE

Tandem triple quadrupole mass spectrometer with ultra performance liquid chromatography and supercritical fluid chromatography

Description:

The triple quadrupole mass spectrometer allows for increased sensitivity and specificity yielding lower detection and quantitation limits. TQ-MS can be employed in the fields of drug metabolism, pharmacokinetics, environmental studies, food and biological analyses. In environmental and biological studies, the triple quadrupole is useful for quantitative studies that involved identifying whether or not specific substances are present in a sample.

Ultra performance liquid chromatography allows separation of the mixtures of compounds of high to medium polarity and supercritical fluid chromatography separates compounds of low polarity.

Usage area: Determination of concentrations of individual compounds in complex compound mixtures.

Keywords: chromatography, mass spectrometry, separation, quantitation