Application of TFC Series Soil Nutrient Tester VII-Portable Precision Cassette Package..

(a) Reagent list

No.

Reagent name

Quantity

unit

Note

01

Phenol solution

4

bottle

100ml/bottle

02

Sodium hypochlorite

8

bottle

100ml/bottle

03

Ammonium nitrogen standard solution (4ppm)

2

bottle

100ml/bottle

04

Ammonium nitrogen standard solution (8ppm)

1

bottle

100ml/bottle

05

Molybdenum sulphate

4

bottle

100ml/bottle

06

Effective Phosphorus Standard Solution (1ppm)

2

bottle

100ml/bottle

07

Effective Phosphorus Standard Solution (2ppm)

1

bottle

100ml/bottle

08

EDTA solution

1

bottle

100ml/bottle

09

Sodium tetraphenylborate solution

2

bottle

100ml/bottle

10

Formaldehyde solution

1

bottle

100ml/bottle

11

Available potassium standard solution (20ppm)

3

bottle

100ml/bottle

12

Potassium dichromate solution

4

bottle

100ml/bottle

13

Organic standard liquid

1

bottle

100ml/bottle

14

Potassium chloride

15

bag

15g/bag

15

Sodium bicarbonate

20

bag

8.4g/bag

16

Sodium nitrate

20

bag

17g/bag

17

Citric acid

10

bag

4g/bag

18

ascorbic acid

1

bag

10g/bag

Note: (1) Please purchase from this reagent tank for the lack of concentrated sulfuric acid (mainly used when testing soil organic matter).

(2) After the chemical liquid in the reagent box is used, it can be purchased at the local chemical store. If individual reagents are not available for a time, you can contact the Qiangsheng Instrument Center for purchasing.

(b) Appliance List

No.

Appliance name

specification

Quantity

Note

01

Tianping

1/10

1 set

The balance can only measure the soil, such as measuring the fertilizer needs more than 1/100 balance.

02

White plastic bottle

4

03

Pipette

5ml

1

04

Pipette

10ml

1

05

Beaker

100ml

6

06

Triangle bottle

50ml

2

07

Measuring cylinder

100ml

1

08

Volumetric flask

50ml

2

09

Volumetric flask

100ml

2

10

Volumetric flask

200ml

1

11

Wash bottle

1

12

Suction ball

1

13

dropper

3 only

14

filter paper

1 box

15

Spoon

1

Note: The use and maintenance of some vessels: 1. Wash the new glassware first with water, then soak it in hot potassium dichromate bath to remove impure substances, then rinse with water, and finally wash it several times with distilled water. . 2. For greased glassware, it can be washed with hot soapy water or alkaline alcohol lotion, and finally washed several times with distilled water. 3. Wash the plastic utensils with 1+3 nitric acid and rinse with distilled water. 4. When using vessels such as pipettes, volumetric flasks, and graduated cylinders in the experiment, make the liquid bottom surface parallel to the scale of the vessel. 5. When using the balance, place the balance on the workbench steadily, so that the pointer on both sides of the balance is stable on the central tick line. If the pointer is continuously swinging to both sides, the balance can be adjusted so that the swing distance of both sides of the pointer is equal. 6, special attention, in the experiment using concentrated sulfuric acid and water, concentrated sulfuric acid should be slowly injected into the water, can not be injected into the concentrated sulfuric acid water.

Hangzhou Top Instrument Co., Ltd.

Room 806, Songdu Building, No. 69 Wangjiang Road, Hangzhou

Tel 86059660 86062776

fax

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