Provided herein is technology relating to predicting a subject's resistance or responsiveness to a decitabine based therapy and particularly, but not exclusively, to methods, compositions, and related uses for predicting a subject's resistance or responsiveness to a decitabine based therapy wherein the subject is diagnosed with chronic myelomonocytic leukemia.

A drying device comprising a regenerable desiccant medium that is effective to adsorb water without absorption of gaseous analyte species in an introduced ambient air stream is described. The drying device can be used with a thermal desorption device to remove water vapor from gaseous analyte species prior to analysis of the gaseous analyte species. Systems including a drying device are also described.

A drying device comprising a regenerable desiccant medium that is effective to adsorb water without absorption of gaseous analyte species in an introduced ambient air stream is described. The drying device can be used with a thermal desorption device to remove water vapor from gaseous analyte species prior to analysis of the gaseous analyte species. Systems including a drying device are also described.

Disclosed is a photoionization gas sensor including an ultraviolet generating module having a first substrate, a second substrate, and a third substrate sequentially coupled in a vertical direction, and configured to generate ultraviolet by applying an electric field to a noble gas filling a first cavity, the first cavity formed in a central portion of the second substrate, and a measuring module configured to collect an electrical signal, the electrical signal being generated such that an electric field is applied to a passage, through which gas ionized by ultraviolet passes, so as to allow the ionized gas to come into contact with an electrode, thereby having a small volume and being operated at a low voltage.

The present invention relates to a method for calibrating a receiver device or a stimulus-response system comprising a receiver device. The method comprises the steps of generating at least one tone with a repeatable and known phase value, said at least one tone being stepped in frequency to cover a given set of calibration tones, and applying the at least one tone to the receiver device or to the stimulus-response system, generating a reference signal, which is phase-coherent with the at least one tone, to measure in a phase-coherent way with the receiver device or with the stimulus-response system the at least one tone, measuring at least the phase of the at least one tone using the receiver device or the stimulus-response system, determining at least phase-related information for calibration coefficients at the given set of calibration tones by calculating a phase deviation of the measured phase from the known phase value of the at least one tone.

The present invention provides a method for relative quantitative analysis of a polymer using MALDI mass spectrometry, the method comprising the steps of: (S1) electro-spraying a solution containing a polymer sample and a matrix through a mask to prepare a plurality of polymer specimens with a thickness variation of 30% or less according to the concentration of the polymer sample; (S2) irradiating the respective plurality of polymer specimens with laser to obtain MALDI mass spectra; and (S3) creating a quantitative calibration curve from peak results of the MALDI mass spectra by using a signal of the polymer sample.

The present invention provides a method for relative quantitative analysis of a polymer using MALDI mass spectrometry, the method comprising the steps of: (S1) electro-spraying a solution containing a polymer sample and a matrix through a mask to prepare a plurality of polymer specimens with a thickness variation of 30% or less according to the concentration of the polymer sample; (S2) irradiating the respective plurality of polymer specimens with laser to obtain MALDI mass spectra; and (S3) creating a quantitative calibration curve from peak results of the MALDI mass spectra by using a signal of the polymer sample.

A method of evaluating an analysis device that is capable of detecting each of a plurality of compounds included in a sample includes introducing the sample including a first compound into the analysis device for measurement and detecting the first compound and at least one reaction product derived from the first compound, and acquiring information representing whether the analysis device is in a suitable state for an analysis based on an intensity of the detected first compound and an intensity of each of the detected at least one reaction product, and a relative response factor in regard to each of the first compound and the at least one reaction product.

A method of evaluating an analysis device that is capable of detecting each of a plurality of compounds included in a sample includes introducing the sample including a first compound into the analysis device for measurement and detecting the first compound and at least one reaction product derived from the first compound, and acquiring information representing whether the analysis device is in a suitable state for an analysis based on an intensity of the detected first compound and an intensity of each of the detected at least one reaction product, and a relative response factor in regard to each of the first compound and the at least one reaction product.

A system and method for chemical analysis are described herein. The system includes a probe, a sample collection cartridge, and a chemical analyzer. The probe is configured to collect the optimal amount of sample for a future analysis and to store this chemical sample in the sample collection cartridge. The probe also collects sample data. The chemical analyzer is configured to determine the optimal analysis settings based on the sample data and analyze the chemical sample stored in the sample collection cartridge based on the optimal analysis settings.