abundance measurement in a sentence

1. It is able to make precise abundance measurements and also distinguish between different isotopologues of methane.
2. Furthermore, area under a peak represents relative abundance rather than absolute abundance, and there are biases in abundance measurement and PCR amplification.
3. A 2014 comparison of computer simulations with elemental abundance measurements in the Earth's mantle indicated that the collision occurred approximately 95 My after the formation of the Solar System.
4. It's difficult to find abundance measurement in a sentence.