MULTI-WAVELENGTH LIGHT SOURCE

摘要

A fluid separation system for separating compounds of a sample fluid in a mobile phase comprises a detector adapted to detect separated compounds by providing an optical stimulus signal to the sample fluid and receiving a response signal on the optical stimulus signal. The detector comprises a light source adapted to provide an output light beam as the optical stimulus signal. The light source comprises a plurality of light emitting elements each adapted to emit a light beam having a respective wavelength, and a diffracting element. The plurality of light emitting elements are arranged that emitted light beams impinging on the diffracting element in a respective angle dependent on the respective wavelength are diffracted by the diffracting element into the output light beam.

主权项

1. A detector for detecting compounds in a sample fluid, the detector comprising:
a light source configured to provide an output light beam as an optical stimulus signal to the sample fluid, the light source comprising a plurality of light emitting elements configured to emit a plurality of respective light beams having a plurality of respective wavelengths; a diffracting element, wherein the plurality of light emitting elements is arranged such that light beams emitted from respective light emitting elements impinge on the diffracting element at respective angles dependent on the respective wavelengths, and the light beams emitted from the respective light emitting elements are diffracted by the diffracting element into the output light beam; a receiver configured to receive a response signal transmitted in response to the optical stimulus signal; and a control unit coupled to the light source and configured to control the plurality of light emitting elements according to code multiplexing.