For HPLC techniques, high-risk CMPs include material properties, instrument settings, mobile phase components (such as buffer type, concentration, pH, elution method, and organic modifier), column ...

By combining ultrasound with a concept called nonlinear acoustics, you can create sound that stays silent until it reaches a specific location.

Fifteen months of new data since May 2023 continue to track closely along the path of a fitted nonlinear Phillips curve. This confirms earlier work that portrays the nonlinear empirical relationship ...

An Improved Quadratic Spline Model Using Curvature Tip Compression—Particle Swarm Optimization to Forecast Accurately the Nonlinear Fluid Calibration Curve Abstract: Calibration costs of fluid ...

In this article, the author modestly expresses his views on the use and understanding of linearity, a key parameter to be determined in analytical method validation in quality control laboratories (QC ...

System Calibration Calibration of the instrument was accomplished using duplicate injections of standards from 0.10 to 2.0 mg/mL. Evaporative light scattering detectors (ELSD) are known to produce ...

Leucine enkephalin was used as the calibration solution with an accurate mass number. 2.3 HPLC fingerprint method 2.3.1 Chromatographic conditions HPLC analysis was performed using the Thermo Fisher ...

Inflation has climbed since 2021, as the labor market has tightened. Two historical data relationships can account for elevated inflation over the past two years: the Beveridge curve, which relates ...