Sample solutions were analyzed with an Agilent 1290 UPLC system coupled to a G6460 triple quadripole
spectrometer (Agilent, version 2.1).
Apparent resistivity measurements are recorded sequentially sweeping any quadripole
(current and potential electrodes) within the multi electrode array.
The UltiMate 3000 LC system from Dionex coupled to a triple quadripole
5500 QTRAP system from AB Sciex was used.
Therefore, the geophysical cable is replaced by quadripole
one, connected between the supply source and electric motor.
Next, the reconfigured equivalent circuit in Figure 2(a) is simplified forming a quadripole
admittance matrix, [Y.sub.R], of the closed-loop, while transformer, T, and admittance, [Y.sub.c], at the outer section are as depicted in Figure 3.
The scattering matrix relates outgoing and incoming waves in a quadripole
. For the circuit of Fig.
Indeed, the position of transmission zeros are controlled by the central closed loop which can be further simplified to form a quadripole
, represented by a Y-matrix, [Y.sub.LT], as illustrated in Figure 5.
We used an API 5000 triple quadripole
mass spectrometer (Applied Biosystems) with a higher injection volume (100 uL) than that of the published SISCAPA.
In order to improve the model's accuracy, it is reasonable to model pipeline using discrete elements--analogy with electrical engineering--a so-called quadripole
It is well known that there are three types of aeroacoustic noise sources (Neise 1992): monopole, dipole, and quadripole
. As for fans, of which the blade tip Mach number is usually less than 0.3, only the dipole source generated by the pressure fluctuation is significant enough to be considered.
Adams R (2001) Identification of essential oil by gas chromatography / quadripole
Key words: Mechatronics, modelling, generalized impedance, quadripole