ThermoFisher Scientific hand held analyzer
ThermoFisher Scientific makes a hand held analyzer, that does what you are asking.
Here is a link with info below from the ThermoFisher website:
https://www.thermofisher.com/order/catalog/product/XL2PLUS#/XL2PLUS
they have good specs and videos on the website
I also see they will have rental options:
Rent to buy. Rent to try
Not ready to purchase an XRF analyzer? If you have a short-term or one-time project, take advantage of our rental program and experience for yourself how Thermo Scientific™ Niton™ portable XRF analyzers can help increase your productivity while moderating costs. Niton analyzers can be rented by the week or by the month – with discounted rates for longer periods. Rental fees may be applied toward the purchase of a Niton analyzer. Request more information for terms and conditions.
You might contact them and ask them who has one in your area, and then contact a local company that has one and pay for the service.
I do this sometimes to get access to technologies that are too costly to purchase equipment, for a one time use, perhaps it could work for you.
According to the specs, they use a 2W X-Ray tube, along with something called a Silicon Drift Detector (SDD)
(from Wikipedia on SDD - silicon drift detectors measure the energy of an incoming photon by the amount of ionization it produces in the detector material.)
Some details:
Available Analytical Modes General Metals, Precious Metals, Coatings, Mining, Soils, Electronic Alloys, Plastics, Industrial Lead in Paint, Lead in Paint Products
Data Storage 64 MB internal system memory / 128 MB internal user storage
Stores approximately 10,000 readings with spectra (fewer if images are saved)
Data Transfer USB, Bluetooth, RS-232 serial communication
Description Niton XL2 Plus Handheld XRF Analyzer
Detector Type Silicon Drift Detector (SDD)
"Confidently perform elemental analysis with the Thermo Scientific™ Niton™ XL2 Plus handheld XRF analyzer. When durability, performance and productivity are top of mind, industrial businesses rely on the Niton XL2 Plus handheld XRF analyzer for fast results and low detection limits. Identify pure metals and alloys, or obtain geochemical data, the Niton XL2 Plus provides operators the ability to scan a broad range of materials in one versatile analyzer."
FYI ThermoFisher is traded on the NYSE and the stock symbol is TMO