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. 2021 Sep 16;17:92. doi: 10.1186/s13223-021-00588-5

Table 2.

Ragweed extract data from HollisterStier and Stallergenes Greer

RAGWEED Corresponding PNU/mL
HollisterStier (n = 16) Stallergenes Greer (n = 5)
Wt/volume (1:100) Wt/volume (1:200) Wt/volume (1:100) Wt/volume (1:200)
A
 Lowest value 14,800.00 7400.00 15,000.00 7500.00
 Highest value 23,500.00 11,750.00 18,000.00 9000.00
 Mean 17,443.75 8721.88 16,360.00 8180.00
 St. deviation 2593.98 1296.99 1209.30 604.65
RAGWEED Corresponding diluent (mL)
HollisterStier (n = 16) Stallergenes Greer (n = 5)
PNU (1000) PNU (2000) PNU (3000) PNU (4000) PNU (5000) PNU (1000) PNU (2000) PNU (3000) PNU (4000) PNU (5000)
B
 Lowest value 1480.00 740.00 493.33 370.00 296.00 1500.00 750.00 500.00 375.00 300.00
 Highest Value 2350.00 1175.00 783.33 587.50 470.00 1800.00 900.00 600.00 450.00 360.00
 Mean 1744.38 872.19 581.46 436.09 348.88 1636.00 818.00 545.33 409.00 327.20
 St. deviation 259.40 129.70 86.47 64.85 51.88 120.93 60.46 40.31 30.23 24.19

Corresponding PNU concentrations for a weight per volume of 1:100 and 1:200 are shown A, while corresponding diluent volumes for PNUs values from 1000 to 5000 are shown in B. These volumes represent the amount of diluent or buffer added to 1 g of allergen