Background corrected concentration.

concc is the background corrected concentration

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The impurity concentration of the LDD low concentration region (135) is lower than the impurity concentration of the LDD medium concentration regions (134).

No observed effect concentration (NOEC): is the test concentration immediately below the LOEC.

Therapeutic index is the ratio of the toxic concentration over therapeutic concentration.

is the average background corrected CO2 concentration, ppm

The level of the ketal is expressed in relation to the level of co-reactants.

The actual concentration of said nicotine metabolites in a sample of urine is also measured and then the actual concentration is compared with the urine concentration so as to derive the absolute concentration of said nicotine metabolites.

The ion concentration of mixed liquid is detected by an ion concentration sensor (4,6), and the value of the ion concentration is compared with that of the target concentration parameter.

Optionally, the soluble calcium concentration can be determined by subtracting the measured soluble magnesium concentration from the measured total hardness concentration.

calculated emission concentration at the standard percentage oxygen concentration

Fuel specific factor for the calculation of wet concentration for dry concentration

The globulin has a concentration, which is larger than physiological concentration thereof.

The concentration used for the challenge exposure should be the highest non-irritating dose.