Solvent foaming due to Hydorcarbon contamination

[treatwa]

Hello,

We use Morphysorb to sweeten our raw gas to a certain extent before it is processed further at another facility.
We are currently facing solvent foaming problems and have come to a conclusion that higher HC contaminants are the root cause. Cana anyone suggest a SAFE AND ON-SITE way to determine the HC contents of the solvent??? One option is using a hand held tensiometer, can anyone suggest a less expensive option?? or other means to determine the HC content on-site


Thanks