A method of quantifying metal impurities on a silicon product, includes obtaining a sample of the silicon product; etching or chemically treating a surface of silicon product to retrieve a predetermined amount of silicon product mass; and testing and measuring the etched portion for the presence of metal impurities using a testing measurement technique selected from ICP-MS, ICP-OES, IC, or a combination comprising at least one for the foregoing, wherein the metal impurities are selected from sodium, magnesium, nickel, copper, zinc, molybdenum, tungsten, aluminum, potassium, calcium, titanium, chromium, manganese, iron, cobalt, or a combination comprising at least one of the foregoing.

Methods, systems, devices, and products for evaluating a fluid. Methods include introducing a sample comprising the fluid to a solvating fluid at a point in a chamber associated with the instrument at a first time to create a heterogeneous admixture; measuring concentrations of each of a plurality of components in the admixture at a plurality of distances from the point in the chamber at, at least one additional time later than the first time, each of the plurality of distances being non-zero; and estimating a relative concentration for each of the plurality of components in the fluid by extrapolating the relative concentration of each of the plurality of components in the sample at the point at the first time using the measured concentrations in the admixture at the plurality of distances.

Processes and apparatus for analyzing fluid properties of a stream are described. The processes utilize a simulated moving bed system and a rotary valve. The processes involve sending a portion of the pump-around stream to a side chamber where the moisture content of the adsorbent in the side chamber or one or more fluid properties of the stream or both are measured using an analyzer specific to each fluid property.

The present invention relates to dialysis based in vitro drug release study method which mainly involves the use of a dialysis cartridge (A), a dissolution vessel (B), a receiver media vessel (C) and tubing's on the inlet and outlet ports (D, E, F, G) of the cartridge. When the pharmaceuticals complex dosage form is added to the dissolution vessel, diffusion of the soluble drug through the membrane of the dissolution cartridge assists in determining the release of drug from the complex dosage form. This study can be done by various methods as required by the complex dosage form. If the dosage form needs to go through dissolution followed by diffusion, the setup as described in Experiment 1 is arranged and the study is performed accordingly and if the dosage form needs to go through diffusion step only, the setup as described in Experiment 2 is arranged and the study is performed accordingly.

The present invention relates to a chromatography method, a method of determining the concentration of at least one compound in a chromatography method, a method of obtaining an adsorption isotherm, a method of obtaining at least one stationary phase and a method of evaluating the accuracy of a predetermined adsorption isotherm.

Provided is a method for determining whether or not infection with Bursaphelenchus xylophilus exists. The method includes a first sap extraction step of immersing a first fragment sample taken from a first tree in a solvent to extract a first sap contained in the first fragment sample of the first tree, a first concentration analysis step of analyzing a first concentration of an organic compound contained in the first sap, and a first comparison step of comparing the first concentration with a reference concentration of the organic compound contained in the sap of a tree that has not been infected with Bursaphelenchus xylophilus, so as to determine whether or not a coniferous tree is infected with Bursaphelenchus xylophilus.

Techniques and apparatus for an analytical data acquisition process are described. In one embodiment, for example, an apparatus may include logic to submit a sample list for acquisition via an instrument system, the sample list comprising a plurality of injections for a mass analysis system, generate a queue element in a queue for the sample list, the queue element representing the plurality of injections of the sample list to be performed by the at least one instrument system, the queue comprising a plurality of queue elements submitted by a plurality of users and to indicate a progress of each of the plurality of queue elements, and perform a control function on at least one of the plurality of queue elements responsive to user input, the control function comprising one of stopping, starting, or editing the at least one of the plurality of queue element. Other embodiments are described.

A waveform processing assistance device includes an acquirer that acquires a plurality of waveform data obtained by an analysis of a sample, a selector that selects reference data among the waveform data, an extractor that extracts correct answer peaks and correct answer data from the reference data a determiner that determines each processing section including a correct answer peak and each parameter initial value, a waveform processor that performs waveform processing in each determined processing section based on each parameter initial value, an adjuster that generates a parameter adjustment value at which a waveform processing result obtained in each processing section matches or approximates corresponding correct answer data, and a program creator that creates a waveform processing execution program that includes an instruction to execute waveform processing using the parameter adjustment value in each processing section.

A method for operating a spectral data processing system. The method includes receiving a user input associated with processing of a spectral data of a chemical sample at least partly using a machine learning processing model. The machine learning processing model is arranged in a machine learning controller of the spectral data processing system. The method also includes training the machine learning processing model based on the received user input.

An apparatus includes a first flow channel connected to a gas release channel of a gas chromatograph that sends at least a volatile component separated by the gas chromatograph into the mouth of an evaluator; a container that stores a non-gaseous flowable specimen having fluidity; and a second flow channel that sends the flowable specimen into the mouth.