ROX passive reference dye
          ROX passive reference dye is used to normalize for non-PCR related 
          fluorescence signal variation. Passive reference dye does not take 
          part in the PCR reaction and its fluorescence remains constant during 
          the PCR reaction. The ROX dye is provided as a 50x solution dissolved 
          in a buffer that is compatible with the qPCR reaction buffer. Add the 
          ROX passive reference dye to the qPCR master mix, 1 µl for each 50 µl 
          reaction. At the 1x working concentration the ROX dye can be used to 
          normalize data with ABI PRISM® real-time PCR instruments e.g. 7700 and 
          7900 SDS models. The amount of the ROX passive reference dye can be 
          adjusted if different fluorescence level is needed with other 
          instruments.
 
          Storage
          The DyNAmo HS SYBR Green qPCR kit is shipped in gel ice. Upon 
          arrival store all kit components at -20 ºC. The DyNAmo HS SYBR Green 
          Kit is stable for six months from the date of packaging when stored 
          and handled properly.
          After use, the leftover thawed 2x master mix can be refrozen and 
          stored at -20 °C.