推薦產品
形狀
solid
品質等級
用途
sufficient for ~50 tests
分子量
105.99 g/mol
製造商／商標名
Roche
技術
activity assay: suitable
顏色
white to light yellow-brown
溶解度
water: soluble ~210 g/L at 68 °F (Stop reagent)
soluble ~71 g/L at 32 °F (stop reagent)
water: soluble (Buffer substance, lyophilized substrate)
適合性
suitable for enzyme test
應用
life science and biopharma
儲存溫度
room temp
一般說明
N-acetyl-β-D-glucosaminidase (NAG) is mainly used in the colorimetric assay for the determination of N-acetyl-β-D-glucosaminidase in urine. NAG hydrolyzes 3-cresolsulfonphthaleinyl-N-acetyl-D-glucosaminide to release 3-cresolsulfonphthalein, which is measured photometrically at 580nm.[1] It is an intracellular lysosomal enzyme, present in the S3 segment of proximal tubular cells and distal nephron. Presence of NAG in the urine shows an organelle impairment in proximal tubule. Level of NAG rises in individuals over 70 years of age.[2]
應用
N-acetyl-β-D-glucosaminidase (NAG) has been used for preparing standards for the determination of N-acetyl-β-D-glucosaminidase in urine[1] in life-science research applications.
包裝
1 kit containing 3 components
準備報告
Working solution: Preparation of solutions:
Storage conditions (working solution): Stability of solutions:
Solution II is stable for 1 month when stored at 2 to 8 °C, protected from light.
Solution III is stable for 1 month stored at 2 to 8 °C.
Stability of the sample:
The activity determination of the N-acetyl-β-D-glucosaminidase (NAG) should be carried out directly after collecting the sample. Turbid urines should be centrifuged and the supernatant decanted. NAG is stable for one week at 2 to 8 °C and for one month when stored at -15 to -25 °C.
- Buffer solution
Dissolve the contents of bottle 1 with 55 ml double-distilledwater. - Substrate solution
Dissolve the contents of bottle 2 with 55 ml solution I. - Stop reagent
Dissolve the contents of bottle 3 with 110 ml double-distilled water.
Storage conditions (working solution): Stability of solutions:
Solution II is stable for 1 month when stored at 2 to 8 °C, protected from light.
Solution III is stable for 1 month stored at 2 to 8 °C.
Stability of the sample:
The activity determination of the N-acetyl-β-D-glucosaminidase (NAG) should be carried out directly after collecting the sample. Turbid urines should be centrifuged and the supernatant decanted. NAG is stable for one week at 2 to 8 °C and for one month when stored at -15 to -25 °C.
儲存和穩定性
Keep container tightly closed in a dry and well-ventilated place.
其他說明
For life science research only. Not for use in diagnostic procedures.
僅套裝組件
產品號碼
描述
- Buffer Substance consisting of citric acid and potassium citrate
- Lyophilized Substrate consisting of sodium 3-cresolsulfonphthaleinyl-N-acetyl-β-D-glucosaminide and borax
- Stop Reagent consisting of sodium carbonate
訊號詞
Danger
危險聲明
危險分類
Eye Irrit. 2 - Repr. 1B - STOT SE 3
標靶器官
Respiratory system
儲存類別代碼
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
水污染物質分類（WGK）
WGK 2
閃點（°F）
does not flash
閃點（°C）
does not flash
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