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MAK057

Sigma-Aldrich

柠檬酸检测试剂盒

sufficient for 100 colorimetric or fluorometric tests

别名:

柠檬酸测试试剂盒

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About This Item

UNSPSC代码:
12161503
NACRES:
NA.84

用途

sufficient for 100 colorimetric or fluorometric tests

应用

cosmetics
food and beverages

检测方法

colorimetric
fluorometric

相关疾病

cancer

储存温度

−20°C

一般描述

柠檬酸是三羧酸（TCA）循环的关键中间体，通过向乙酰辅酶A的乙酰基中加入草酰乙酸而得。柠檬酸通过柠檬酸-苹果酸梭子从线粒体中转运出来，然后转化回乙酰辅酶A进行脂肪酸合成。柠檬酸是脂肪酸合成和糖酵解的别构调节剂，分别通过作用于乙酰辅酶A羧化酶和磷酸果糖激酶来实现。由于性别、年龄和各种其他因素（包括疾病状态），柠檬酸的代谢和分布差异可能很大。前列腺癌细胞中的细胞柠檬酸水平降低，柠檬酸水平可能是前列腺癌生长速率的标志物。柠檬酸检测试剂盒提供了一种可简单、灵敏、快速地对各种样品中的柠檬酸进行定量的方法。

应用

柠檬酸检测试剂盒用于检测样品中柠檬酸的浓度。[1][2][3]

适用性

适用于对包括组织和细胞在内的多种样品中的柠檬酸盐进行测定

原理

柠檬酸的浓度通过酶偶联法检测，产生与存在的柠檬酸成比例的比色（570 nm）/荧光（λex = 535/λem = 587 nm）产物。柠檬酸检测试剂盒的灵敏度在各种样品中通常为0.1至10 nM（2 μmM-10 mM）柠檬酸。

相关产品

产品编号
说明
价格

危险声明

H412

预防措施声明

P273 - P501

危险分类

Aquatic Chronic 3

储存分类代码

10 - Combustible liquids

WGK

WGK 3

闪点(°F)

188.6 °F - closed cup

闪点(°C)

87 °C - closed cup

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
8M13K06550
8J28K06550
8B08K06550
7F22K06550
6L09K06550

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Long Ding et al.
The EMBO journal, 37(17) (2018-07-28)
Seipin, the gene that causes Berardinelli-Seip congenital lipodystrophy type 2 (BSCL2), is important for adipocyte differentiation and lipid homeostasis. Previous studies in Drosophila revealed that Seipin promotes ER calcium homeostasis through the Ca2+-ATPase SERCA, but little is known about the
High-intensity sprint training inhibits mitochondrial respiration through aconitase inactivation.
Larsen F J, et al.
Faseb Journal, 30(1), 417-427 (2015)
Ricardo Villa-Bellosta et al.
Scientific reports, 9(1), 11374-11374 (2019-08-08)
Vascular calcification is highly prevalent in patients with chronic hemodialysis. Increased acetatemia during hemodialysis sessions using acetate-acidified bicarbonate has also been associated with several abnormalities, By contrast, these abnormalities were not induced by citrate-acidified bicarbonate dialysis. Moreover, citrate is biocompatible
Yan Huang et al.
Regenerative biomaterials, 7(2), 221-232 (2020-04-17)
The purpose of this article was to explore the effects of gold nanoparticles (GNPs) and silver nanoparticles (SNPs) with different cytotoxicities on human dermal fibroblasts (HDFs) at the metabolic level. First, ∼20 nm of GNPs and SNPs were prepared, and their
Jade D Bailey et al.
Cell reports, 28(1), 218-230 (2019-07-04)
Classical activation of macrophages (M(LPS+IFNγ)) elicits the expression of inducible nitric oxide synthase (iNOS), generating large amounts of NO and inhibiting mitochondrial respiration. Upregulation of glycolysis and a disrupted tricarboxylic acid (TCA) cycle underpin this switch to a pro-inflammatory phenotype.
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Questions

1–3 of 3 Questions  

  1. 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

      Helpful?

  2. 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

      Helpful?

  3. How are the detection range and sensitivity determined for the MAK057 assay?

    1 answer

    1. The calculation of the higher limit of detection is determined by dividing the highest concentration of the standard by the minimum sample volume. Similarly, the lower limit of detection is calculated by dividing the lowest concentration standard by the maximum sample volume. In the event that a sample exceeds the range of the standard curve, it is advisable to conduct a dilution and then adjust for the dilution factor.
      For instance, for the MAK057 test:

      Colorimetric:
      • Lower range: 2 nmol/50 = 0.04 mM or 40 uM
      • Higher range: 10 nmol/1 uL = 10 mM or 10,000 uM
      Fluorometric:
      • Lower range: 0.2 nmol/50 = 0.004 mM or 4 uM
      • Higher range: 1 nmole/1 uL = 1 mM or 1000 uM

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