211results about How to "Facilitated ionization" patented technology

The invention relates to a microwave plasma biomass gasification fixed-bed gasification furnace and a process, comprising a vertically arranged furnace body; a gasification furnace clearance zone is arranged at the upper part of the furnace body; a fixed bed is arranged at the lowest part of the furnace body; an raw material and fuel inlet, a product gas outlet and an oxygen / steam inlet are arranged on the furnace body; a slag notch is arranged at the bottom of the furnace body, and a synthesis gas monitoring unit is arranged at the position of the product gas outlet. The gasification furnace and the process are characterized in that: at least one microwave plasma generating device is arranged on the furnace body, the characteristics of high dispersion degree and high ionization of microwave plasma are adopted to achieve high-efficiency conversion of biomass fuel chemical energy in the furnace. The cold gas efficiency can be significantly higher than that of the conventional biomass gasification process and can reach more than 85%. Non-equilibrium cleavage reaction is carried out to tar and the like in synthesis gas, so that tar content is very low, direct industrialization utilization can be achieved, and the follow-up process is simple and reliable. No special requirements on the fuel particle size are demanded, simple breaking operation is only needed without complex processing, and the economy is good.

A laser atom probe (100) situates a counter electrode between a specimen mount and a detector (106), and provides a laser (116) having its beam (122) aligned to illuminate the specimen (104) through the aperture (110) of the counter electrode (108). The detector, specimen mount (102), and then be pulsed to bring the specimen to ionization. The timing of the laser pulses may be used to determine ion departure and arrival times allowing determination of the mass-to-charge ratios of the ions, thus their identities. Automated alignment methods are described wherein the laser is automatically directed to areas of interest.

The invention discloses a general-purpose nanochip for mass spectrometry, and relates to the technical field of mass spectrometry. The host material of the nanochip is silicon-based semiconductor material, array spotted holes are distributed at the surface of the host material, the inner surfaces of the spotted holes are nanostructures; the surface of the host material has regional hydrophobic modification, the internal portions of the array spotted holes are hydrophilic zones, and the outer portions of the array spotted holes are hydrophobic zones; or the internal portions of the array spotted holes are hydrophobic zones, and the outer portions of the array spotted holes are hydrophilic zones. The present invention further discloses a preparation method and a clinical application of the nanochip. The nanostructures can be used to extract the molecules at the surface of the sample of the biological tissue sample to be tested to improve the laser energy absorption and utilization so asto improve the ionization efficiency and enhance the mass spectrometry signals. The general-purpose nanochip can be widely applied to the field of clinical testing.

The invention provides a mass spectrometry system and a working method thereof. The mass spectrometry system includes an ion source, a sampling device and a mass spectrometer. The sampling device includes a guide rail; a support suitable for moving on the guide rail; a bearing piece made of hydrophobic material and having two ends fixed on the support; at least two conveying parts made of hydrophilic material and each including a first part arranged on the bearing piece and a second part connected with the first part and protruding into a container; the container arranged on the support and accommodating to-be-detected samples; a drive module driving the support to move on the guide rail so as to enable the central axis of an exit port of the ion source to penetrate through the first part, wherein the adjacent conveying parts are not in contact. The system provided by the invention has advantages of good accuracy, high flexibility and the like.