Palmer Counting Cell SS with 2 cover glasses.
Palmer Counting Cells, SS, 0.1mL
Similar to the Sedgewick Rafter but specifically intended for nannoplankton. The shallow depth of the circular chamber permits use of 40 to 45 x objectives. Because its magnification limit is 400 to 450 x, it is recommended for 43 x dry objectives of approximately 0.65 n.a. and 4 mm e.f. Do not use unless your sample contains a dense population of 10 or more plankters per field, due to the cell’s small size. Such a small sample portion from a less dense population can cause serious underestimation of density.
Specifications:
• Volume is 0.1 mL
• Stainless steel cell is shallow, 17.9 mm diameter x 0.4 mm deep, with 2 charging channels. Consists of 75 x 15 x 2 mm thick polished glass slide glued with SS epoxy to form flat-bottomed chamber. Chamber area is 252 sq mm. Includes: 2 cover glasses, snap-lock plastic case.
More info
Palmer Counting Cells, SS, 0.1mL
Similar to the Sedgewick Rafter but specifically intended for nannoplankton. The shallow depth of the circular chamber permits use of 40 to 45 x objectives. Because its magnification limit is 400 to 450 x, it is recommended for 43 x dry objectives of approximately 0.65 n.a. and 4 mm e.f. Do not use unless your sample contains a dense population of 10 or more plankters per field, due to the cell’s small size. Such a small sample portion from a less dense population can cause serious underestimation of density.
Specifications:
• Volume is 0.1 mL
• Stainless steel cell is shallow, 17.9 mm diameter x 0.4 mm deep, with 2 charging channels. Consists of 75 x 15 x 2 mm thick polished glass slide glued with SS epoxy to form flat-bottomed chamber. Chamber area is 252 sq mm. Includes: 2 cover glasses, snap-lock plastic case.
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