Qualitative filter papers, wet strengthened grades, grade 91, Whatman™供应商: Whatman products (Cytiva)
WHAT1091-190EA 0 CNYWHAT1091-190 WHAT1091-185 WHAT1091-935 WHAT1091-110 WHAT1091-930 WHAT1091-125 WHAT1091-240 WHAT1091-165 WHAT1091-150
Qualitative filter papers, wet strengthened grades, grade 91, Whatman™
过滤器 滤纸 Qualitative Filter Paper
A general purpose creped cellulose filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within pharmaceutical laboratories for routine filtration.
These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not introduce any significant impurities into the filtrate. The resins do, however, contain nitrogen so these grades should not be used in Kjeldahl estimations, etc.