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重要文件

Z250465

Sigma-Aldrich

玻璃珠

diam. 0.5 mm, for Mini-Beadbeater

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About This Item

分類程式碼代碼:
23151816
NACRES:
SB.32
暫時無法取得訂價和供貨情況

直徑

0.5 mm

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相關類別

一般說明

玻璃的密度为 2.5 g/cc，是最常用的“珠磨”介质。珠子一磅瓶装。

應用

  • Extraction of Diatom DNA from Water Samples and Tissues.：在硅藻样品DNA提取中用玻璃珠增强对细胞壁的机械破坏，以更高效回收高质量DNA用于下游应用(Zhou YC et al., 2023)。
  • Combination of direct boiling and glass beads increases the purity and accuracy of bacterial DNA extraction.：结合直接煮沸法和玻璃珠以改进细菌DNA提取方法，所得DNA的纯度和准确度更高，对于精准的分子分析有重要意义(Li S et al., 2023)。
  • Solvent Precipitation SP3 (SP4) Enhances Recovery for Proteomics Sample Preparation without Magnetic Beads.：将传统的溶剂沉淀SP3法与玻璃珠结合，作为蛋白质组学样品制备的高效替代方法，蛋白收率比磁珠法更高(Johnston HE et al., 2022)。
  • Efficient isolation of brain capillary from a single frozen mouse brain for protein expression analysis.：使用玻璃珠改进冷冻小鼠大脑毛细血管分离方法，实现详实的蛋白表达分析。对于神经科学研究有重要意义(Ogata S et al., 2021)。

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分析證明 (COA)

Lot/Batch Number

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Yanjie Liu et al.
Yeast (Chichester, England), 37(3), 269-279 (2020-01-22)
In Saccharomyces cerevisiae under conditions of nutrient stress, meiosis precedes the formation of spores. Although the molecular mechanisms that regulate meiosis, such as meiotic recombination and nuclear divisions, have been extensively studied, the metabolic factors that determine the efficiency of
Vanessa David-Vaizant et al.
Frontiers in microbiology, 9, 2235-2235 (2018-10-16)
Wine biological aging is characterized by the development of yeast strains that form a biofilm on the wine surface after alcoholic fermentation. These yeasts, known as flor yeasts, form a velum that protects the wine from oxidation during aging. Thirty-nine

Questions

1–4 of 4 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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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  3. What is the weight of the package?

    1 answer

    1. The package contains approximately 1 pound of glass beads.

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  4. Hi, Are these beads RNase free?

    1 answer

    1. This product is not tested for the presence of RNase.

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