FAQ Category
- (-) Remove Analytical/Results Troubleshooting filter Analytical/Results Troubleshooting
What is the difference between IDF and SDF filter bags?
What is the difference between IDF and SDF filter bags?
IDF filter bags have a shorter length of clear polypropylene material and a taller filter at the bottom of the bag.
SDF filter bags have a longer length of clear polypropylene material and a shorter, wider filter at the bottom of the bag.
SDF filter bags have a longer length of clear polypropylene material and a shorter, wider filter at the bottom of the bag.
Why did my IDF Filter Bag (or Flo-Thru bag) develop small holes during the sample digestion step after the defat process?
Why did my IDF Filter Bag (or Flo-Thru bag) develop small holes during the sample digestion step after the defat process?
In the past we recommended to customers to defat in XT4 bag. When the defat process was completed, the XT4 bags were cut up and placed in the IDF bag. Unfortunately, if the XT4 bag is cut into very small pieces, the sharp edges of the cut pieces can penetrate the clear polypropylene IDF bag, potentially causing leaks. We no longer recommend defatting in XT4 bags. We recommend that you refer to official methods that describes the defatting process, such as AOAC 985.29.
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