{TAIL ~ The enzyme substrate} can also be provided in {HEAD ~ dry or liquid form}, together with or separate from the buffer 
{ TAIL ~ The enzyme substrate } can also be provided in { HEAD ~ dry or liquid form } , together with or separate from the buffer
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH