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AAS18

Supelco

氨基酸标准品

Amino Acid Standard

analytical standard

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About This Item

分類程式碼代碼:
85151701
eCl@ss:
32160406
NACRES:
NA.24
暫時無法取得訂價和供貨情況

等級

analytical standard

儲存期限

limited shelf life, expiry date on the label

分析物化學類別

amino acids, peptides, proteins

技術

HPLC: suitable
gas chromatography (GC): suitable

應用

food and beverages

形式

multi-component solution

儲存溫度

2-8°C

相關類別

應用

该分析标准品用于：
  • 手性Marfeys试剂衍生后通过液相色谱-串联质谱（LC-MS/MS）测定L-和D氨基酸及甘氨酸
  • 采用高效液相色谱法（HPLC）对脱脂米糠（DRB）浓缩蛋白进行氨基酸分析，评价其铁结合能力
  • 开发气相色谱-质谱（GC-MS）方法，利用1,1,1,2,2,3,3-七氟氯甲酸丁酯进行衍生化和液-液微萃取样品处理，分析人类尿液样本中的112种氨基羧基代谢物
  • 采用高效液相色谱法结合C18柱荧光检测，对天然水样中各种形式—的游离、溶解、颗粒和总氨基酸进行非对映体检测和定量

包裝

体积为 1mL，密封在火焰封口的安瓿瓶中。

成分

氨基酸标准品中含以下组分：
  • L-丙氨酸
  • 氯化铵
  • L-精氨酸
  • L-天冬氨酸
  • L-胱氨酸
  • L-谷氨酸
  • 甘氨酸
  • L-组氨酸
  • L-异亮氨酸
  • L-亮氨酸
  • L-赖氨酸
  • L-蛋氨酸
  • L-苯丙氨酸
  • L-脯氨酸
  • L-丝氨酸
  • L-苏氨酸
  • L-酪氨酸
  • L-缬氨酸

其他說明

此校准品中的氨基酸均以 2.5μmol/mL 浓度溶于 0.1N HCl 溶液，但 L-胱氨酸浓度为 1.25μmol/mL。

相關產品

產品號碼
描述
訂價

象形圖

Corrosion
GHS05

訊號詞

Warning

危險聲明

H290

防範說明

P234 - P390

危險分類

Met. Corr. 1

儲存類別代碼

8B - Non-combustible corrosive hazardous materials

水污染物質分類（WGK）

nwg

閃點（°F）

Not applicable

閃點（°C）

Not applicable

從最近期的版本中選擇一個：

分析證明 (COA)

Lot/Batch Number
0000429903
0000429902
0000429902
0000429903
0000413000

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Forkwa Tengweh Fombong et al.
Foods (Basel, Switzerland), 10(1) (2021-01-16)
Edible orthopterans (grasshoppers, crickets, and locusts) are major delicacies, especially across sub-Saharan Africa. Their promotion as food ingredients is increasingly gaining momentum. This study evaluates the nutritional profiles of three widely consumed orthopterans: Gryllus bimaculatus, Locusta migratoria, and Schistocerca gregaria
Chang Xu et al.
Evidence-based complementary and alternative medicine : eCAM, 2020, 9784382-9784382 (2020-05-10)
Type 2 diabetes mellitus (T2DM) has become a major disease threatening human health worldwide. At present, the treatment of T2DM cannot cure diabetes and is prone to many side effects. Psidium guajava L. leaves have been reported to possess hypoglycemic
Yu Liu et al.
Metabolites, 10(8) (2020-08-06)
Glucosinolates are a group of plant secondary metabolites that can be hydrolyzed into a variety of breakdown products such as isothiocyanates, thiocyanates, and nitriles. These breakdown products can facilitate plant defense and function as attractants to natural enemies of insect
Halli S Weiner et al.
Biology of reproduction, 100(5), 1261-1274 (2019-02-05)
Spermatozoa from three feline species-the domestic cat (Felis catus), the cheetah (Acinonyx jubatus), and the clouded leopard (Neofelis nebulosa)-were analyzed using metabolomic profiling and 13C-based fluxomics to address questions raised regarding their energy metabolism. Metabolic profiles and utilization of 13C-labeled
Jan Rozsypal et al.
The Journal of experimental biology, 221(Pt 7) (2018-03-03)
Some insects rely on the strategy of freeze tolerance for winter survival. During freezing, extracellular body water transitions from the liquid to the solid phase and cells undergo freeze-induced dehydration. Here, we present results of a thermal analysis (from differential
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Questions

1–7 of 7 Questions  

  1. Can this Amino acid standard be used for GCMS analysis? And can it be subjected to MSFTA derivitisation?

    1 answer

    1. This standard can be derivatized using MSFTA and subsequently used for GCMS analysis.

      Helpful?

  2. What is the suggested procedure to hydrolyse cystine? Does the hydrolysis procedure affect other amino acids?

    1 answer

    1. This product is intended to be used as an analytical standard and is not suitable for chemical processing. Please contact your regional technical service group for assistance with suitable reagents for your application.

      Helpful?

  3. Is there a recommended HPLC method and associated chromatogram to allow identification of each of the peaks and quantification of each amino acid in a sample (by retention time/integration)?

    1 answer

    1. No method is available to identify each of the peaks for this product. Contact the regional Technical Service group for assistance with identifying chromatographic peaks according to specific analytical techniques.

      Helpful?

  4. 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?

  5. 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?

  6. What is the difference between AAS18 and 79248 (CRM)? What are the storage and shipping conditions? How does the quality of AAS18 compare to CRM?

    1 answer

    1. AAS18 is stored at 2-8°C, while 79248 is stored at -20°C. Both are shipped at ambient temperature. Amino Acid 79248 is a CRM, Certified Reference Material, and AAS18 is a standard. AAS18 does not undergo the rigorous testing that is used for CRM standards.

      Helpful?

  7. Wie lange ist der AAS18 Aminosäuren Standard haltbar, wenn er bei Temperaturen von 2-8°C gelagert wird?

    1 answer

    1. The expiration date of this product is listed on the lot-specific Certificate of Analysis.

      Please access the link below to download a Certificate:
      https://www.sigmaaldrich.com/product/sial/aas18#product-documentation

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Reviews

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  1. France
    • Review 1
    • Vote 1
    5 out of 5 stars.

    great product

    great product that is provided here - fit for purpose

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