Equipment for measuring the content of organic substances in water emulsions and solutions

A method for measuring a content of organic substances in a sample stream, the method comprising:

• collecting the sample stream from a cleaning solution utilized to clean a soldered surface of an electronic assembly,
• wherein the organic substances result from flux residues from soldering the electronic assembly;
• providing a system comprising an inlet, a sonotrode, a body configured to receive the sonotrode, a cuvette, a plurality of reductions comprising a seal, a first UV light source with a first wavelength of λ1, a second UV light source with a second wavelength of Δ2, a first broad-spectrum photodiode, a second broad-spectrum photodiode, a broad-spectrum photo sensor, and an outlet;
• mounting the cuvette to the body via the seal;
• flowing the sample stream through the inlet;
• oscillating the sample stream via the sonotrode;
• flowing the sample stream through the cuvette;
• illuminating the cuvette, while flowing the sample stream through the cuvette, via the first UV light source and the second UV light source;
• measuring the first wavelength of λ1 and the second wavelength of λ2 from the first UV light source and the second UV light source through the cuvette via the first broad-spectrum photodiode;
• measuring the first wavelength of Δ1 and the second wavelength of λ2 directly from the first UV light source and the second UV light source via the second broad-spectrum photodiode;
• measuring a reflection of the first wavelength of λ1 and the second wavelength of λ2 from the sample stream via the broad-spectrum photo sensor;
• and
• flowing the sample stream through the outlet.

A system for measuring a content of organic substances in a sample stream, the system comprising:

• an inlet configured to receive the sample stream,
• wherein the sample stream comprises a cleaning solution utilized to clean a soldered surface of an electronic assembly,
• wherein the organic substances originate from flux residues from soldering the electronic assembly;
• a body configured to receive a sonotrode of an ultrasonic transducer proximate the inlet,
• wherein the sonotrode oscillates the sample stream;
• a transparent cuvette configured to allow the sample stream to flow through;
• a plurality of reductions coupled to the body and comprising a seal for mounting the transparent cuvette to the body;
• a first UV light source with a first wavelength of λ1 and a second UV light source with a second wavelength of λ2 configured to illuminate the transparent cuvette when the sample stream flows through the transparent cuvette;
• a first broad-spectrum photodiode positioned on an optical axis of the first UV light source and the second UV light source to measure the first wavelength of λ1 and the second wavelength of λ2 partially absorbed by the sample stream;
• a second broad-spectrum photodiode positioned to measure the first wavelength of λ1 and the second wavelength of λ2 directly from the first UV light source and the second UV light source;
• a broad-spectrum photo sensor positioned perpendicularly to the optical axis of the first UV light source and the second UV light source to measure a reflection of the first wavelength of λ1 and the second wavelength of λ2 from the sample stream;
• and
• an outlet configured to flow the sample stream out of the system.