How to identify Android application using namespace?

Question

I am trying to determine if the specified application is available on the device or not using namespace.

I tried to use intent, but it does not work for a UC browser.

<a href="intent://scan/#Intent;scheme=zxing;=package=com.google.zxing.client.android;S.browser_fallback_url=http%3A%2F%2Fzxing.org;end"> Take a QR code    </a>

Thank you in advance