Propose a method to remove the systematic error from each of these cases.
a. Pentane (density=0.626g/mL)(density=0.626 g/mL) is weighed on an analytical balance.
b. A pipet which delivers a nominal volume of 2.000±0.006 mL 2.000±0.006 mL is to be used for an analysis requiring accuracy to within 0.2% 0.2%.
c. A 100-μL 100-μL. micropipet consistently delivers 0.25% 0.25% less than its nominal value in the mile-high city of Denver.
d. Paralytic shellfish toxins created by algae blooms are potent neurotoxins. While developing a shellfish reference material for these toxins, the shellfish matrix was observed to suppress the mass spectrometric signal by 0-50% 0-50% relative to standards prepared in water.