If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
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Use QuEChERS methods to analyze samples of milk for veterinary drugs.
Dual-layer cartridge achieves efficient SPE clean-up for challenging pesticide residue testing in turmeric and spices.
2-layer SPE cartridge efficiently reduces background for ginger contaminant analysis.
Analysis of 20 pharmaceutical compounds in calf serum using Supel™ Swift HLB SPE cartridge for cleanup and LC-MS determination and another commercially available HLB cartridge for comparison.
实验方案
Paprika spice's PAH contamination risk due to environmental exposure highlights food safety concerns.
solution, 2 μg/mL in acetonitrile, analytical standard
相关内容
Pesticide residue testing of turmeric and other (dried) spices is challenging due to their complex compositions and high matrix. An efficient SPE clean-up can be achieved by a new Dual-layer cartridge.
A procedure for cleanup of green tea extracts provides low background and allowed for the analysis of more pesticides at lower levels than QuEChERS. Uses less solvents and no toluene.
The odor and pungency of ginger is due to the presence of terpenes, gingerols and shogaols. These compounds contribute to the highly complex matrix of ginger, which subsequently presents a challenge in low level analyses of contaminants. A novel 2-layer SPE cartridge efficiently reduces background for pesticide determination.
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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ディスポーザブルライナーのスペック(ニードルの長さ・管径)を教えていただきたいです。
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The length of the needle portion of Product No. 57059 is 3.125 inches ± 0.063 inches. The outer diameter for the needle portion of the liner is 0.075 inches, and the inner diameter for the needle portion of the liner is 0.063 inches.
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