{HEAD ~ Such methods} allow for the quantitative analysis of the target organic compound and may be competitive or non competitive {TAIL ~ immunoassays} in which the dose response is directly or indirectly proportional to the concentration of spectinomycin related substances 
{ HEAD ~ Such methods } allow for the quantitative analysis of the target organic compound and may be competitive or non competitive { TAIL ~ immunoassays } in which the dose response is directly or indirectly proportional to the concentration of spectinomycin related substances
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH