A system for collecting at least one selected phase of a representative sample from a multiphase fluid flowing through a flowline, the system comprising: a multiphase sampling apparatus attachable to a flowline for sampling a representative sample of a multiphase fluid flowing through the flowline; a vehicle sampling apparatus , the vehicle sampling apparatus comprising a power supply and a fluid sample collector for storing the at least one selected phase of the representative sample; an interface for connecting the multiphase sampling apparatus and the vehicle sampling apparatus ; and a temperature control arrangement disposed between the multiphase sampling apparatus and the vehicle sampling apparatus that minimizes the temperature difference between the representative sample and the multiphase fluid flowing through the flowline , the temperature control arrangement configured to receive power from the vehicle sampling apparatus ; characterized in that the multiphase sampling apparatus comprises first and second sampling ports in fluid communication with the multiphase fluid and the first and second sampling ports are arranged to extract a fluid which is rich in a selected phase from the multiphase fluid flowing through the flowline ; wherein the first sampling port is a liquid- rich sampling port and the second sampling port is a gas-rich sampling port in selective fluid communication with the multiphase fluid flowing through flowline for sampling the representative sample. a multiphase sampling apparatus attachable to a flowline for sampling a representative sample of a multiphase fluid flowing through the flowline; a vehicle sampling apparatus , the vehicle sampling apparatus comprising a power supply and a fluid sample collector for storing the at least one selected phase of the representative sample; comprising a power supply and a fluid sample collector for storing the at least one selected phase of the representative sample; an interface for connecting the multiphase sampling apparatus and the vehicle sampling apparatus ; and a temperature control arrangement disposed between the multiphase sampling apparatus and the vehicle sampling apparatus that minimizes the temperature difference between the representative sample and the multiphase fluid flowing through the flowline , the temperature control arrangement configured to receive power from the vehicle sampling apparatus ; characterized in that the multiphase sampling apparatus comprises first and second sampling ports in fluid communication with the multiphase fluid and the first and second sampling ports are arranged to extract a fluid which is rich in a selected phase from the multiphase fluid flowing through the flowline ; wherein the first sampling port is a liquid- rich sampling port and the second sampling port is a gas-rich sampling port in selective fluid communication with the multiphase fluid flowing through flowline for sampling the representative sample. and the vehicle sampling apparatus that minimizes the temperature difference between the representative sample and the multiphase fluid flowing through the flowline , the temperature control arrangement configured to receive power from the vehicle sampling apparatus ; characterized in that the multiphase sampling apparatus comprises first and second sampling ports in fluid communication with the multiphase fluid and the first and second sampling ports are arranged to extract a fluid which is rich in a selected phase from the multiphase fluid flowing through the flowline ; wherein the first sampling port is a liquid- rich sampling port and the second sampling port is a gas-rich sampling port in selective fluid communication with the multiphase fluid flowing through flowline for sampling the representative sample. <EOS>