The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus CD4 concentration.

试剂底价促销！折扣惊喜不断！

  The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus sIgA concentration.

  The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus sFRP1 concentration. 

  The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus SC concentration.

  The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus SP-D concentration.

  The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus SP-C concentration.

  The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus SP-B concentration.

  The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus SP-A concentration.

  The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus obestatin concentration.