肾素，人类（国际标准）

  【编号】：NIBSC68/356

  【产品名称】：肾素，人类（国际标准）

  【规格】：个

  【价格】：2600元

　　肾素，人类（国际标准）

　　编号：NIBSC68/356

　　英文：Renin, Human (International Standard)

　　标准类型：国际标准品

　　规格：1个

　　描述：

1. INTENDED USE

Calibrant for renin assays

2. CAUTION

This preparation is not for administration to humans or animals in

the human food chain.

The preparation contains material of human origin, and either the final

product or the source materials, from which it is derived, have been

tested and found negative for HBsAg, anti-HIV and HCV RNA. As with

all materials of biological origin, this preparation should be regarded as

potentially hazardous to health. It should be used and discarded

according to your own laboratory's safety procedures. Such safety

procedures should include the wearing of protective gloves and

avoiding the generation of aerosols. Care should be exercised in

opening ampoules or vials, to avoid cuts.

3. UNITAGE

The assigned potency is 0.1 International Units (IU) per ampoule.

4. CONTENTS

Country of origin of biological material: United Kingdom.

Each ampoule contains the residue after freeze drying of 1.0ml of a

solution that contained:

0.272 mg purified extract of human kidney

5 mg lactose

0.1 mol/l sodium phosphate buffer

The material has not been sterilized and contains no bacteriostat.

5. STORAGE

Store at -20ºC or below in the dark

Please note: because of the inherent stability of lyophilized

material, NIBSC may ship these materials at ambient temperature.

6. DIRECTIONS FOR OPENING

Tap the ampoule gently to collect the material at the bottom (labelled)

end. Ensure ampoule is scored all round at the narrow part of the

neck, with a diamond or tungsten carbide tipped glass knife file or

other suitable implement before attempting to open. Place the

ampoule in the ampoule opener, positioning the score at position 'A';

shown in the diagram below. Surround the ampoule with cloth or

layers of tissue paper. Grip the ampoule and holder in the hand and

squeeze at point 'B'. The ampoule will snap open. Take care to avoid

cuts and projectile glass fragments that enter eyes. Take care that no

material is lost from the ampoule and that no glass falls into the

ampoule.

Side view of ampoule opening device containing an ampoule

positioned ready to open. 'A' is the score mark and 'B' the point of

applied pressure.

7. USE OF MATERIAL

No attempt should be made to weigh out any portion of the freeze-dried

material prior to reconstitution.

For all practical purposes each ampoule contains the same amount of the

same materials. Dissolve the total contents in a known amount of suitable

buffer solution with carrier protein (free of peptidase), where extensive

dilution is required, to minimise loss by surface adsorption.

For economy of use it is recommended that the solution be subdivided into

several small containers, which are frozen rapidly to below –40ºC and then

stored below –40ºC in the dark. Repeated freezing and thawing should be

avoided.

8. STABILITY

NIBSC follows the policy of WHO with respect to its reference materials.

It is the policy of WHO not to assign an expiry date to their international

reference materials. They remain valid with the assigned potency and

status until withdrawn or amended. Reference materials are held at

NIBSC within assured, temperature-controlled storage facilities.

Reference Materials should be stored on receipt as indicated on the

label. In addition, once reconstituted, diluted or aliquoted, users should

determine the stability of the material according to their own method of

preparation, storage and use. Users who have data supporting any

deterioration in the characteristics of any reference preparation are

encouraged to contact NIBSC.

9. REFERENCES

WHO Expert Committee on Biological Standardization (1974), 26th Report.

WHO Technical Report Series No. 565, p11, 1975.

D.R. Bangham; Iris Robertson; J.I.S. Robertson; C.J. Robinson and M. Tree.

An international collaborative study of renin assay: establishment of the

international reference preparation of human renin. Clinical Science and

Molecular Medicine (1975), 48, 135s-159s.

10. ACKNOWLEDGEMENTS

Not Applicable

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肾素，人类（国际标准）

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