The part of the sentence, "invaluable in determining," is correct and usable in written English.
You can use it to emphasize the importance of something, such as knowledge, information, or advice, in reaching a conclusion or making a decision. For example, "His expertise was invaluable in determining the best course of action for our business."
The use of three-electrode techniques involving an independent reference electrode is invaluable in determining the overpotential losses at solid oxide fuel cell (SOFC) electrodes.
His efforts proved invaluable in determining the impact of cytologic screening (the "Pap test") on the detection of cervical cancer and "Dr. Chris," as he was affectionately known, came to be justly credited for a significant role in reducing the death rate due to this disease.
Such information would be invaluable in determining the role of flunarizine in multimodality approaches to reduce tumor hypoxia.
In many countries where loans are only now becoming available to consumers, data on consumer spending on utilities could prove invaluable in determining loan eligibility.
For this reason, international organizations, governments, planners and researchers find them invaluable in determining whether a nation as a whole is moving towards meeting national dietary recommendations.
In addition to providing clinical data relevant to each individual patient, these molecular results would be invaluable in determining appropriate, patient-specific, antibiotic therapy.
This is an invaluable aid in determining the potential effectiveness of neutron capture compounds.
Austin would like to see a test that can tell whether a tumor contains metastatic cells at an early stage — invaluable information in determining whether a patient requires aggressive early treatment.
Ideally, a robust social media presence would have been an invaluable yardstick in determining the intensity of influence these individuals exert over their enthusiasts.
"It plays an invaluable role in determining energy policy, which is why it's so troubling that the EIA would hire staff with a recent history of pro-industry propaganda".
Dr. Hakala brings this considerable expertise in real-world applications of event study methodology to bear on the complex issues of analyst statements and impact here, which will be invaluable to the jury in determining issues of materiality, loss causation and damages.
