GB/T 4375.6-1984 Chemical analysis methods for gallium - Salicylfluorone-cetyltrimethylammonium bromide spectrophotometric method for the determination of tin content

GB/T 4375.6-1984 Chemical analysis method for gallium - Determination of tin content by salicylfluorone-cetyltrimethylammonium bromide spectrophotometry GB/T4375.6-1984 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Methods for chenigal analysis of gallium The salicylfinorone cetyltrlmethylanmonipnbroinide photometric method forLhe determlnatiou of thn couteut Standard: GB/T69.871:54a.42-5.86.811.811 GB43T5.6-04 This cup god 78 "Gold product chemical protection and shares. ■ Method tips
The sample is acid. Please make sure that the acid is pure. It is allowed to add N carbonate to the chemical to avoid differentiation: use with plastic and original shape. To resist the potential horse Xie, there are 2 tax belt tour, let: for the standard chemical system, money this field to mention the light heart - dilute! People burn card a volume according to the shape of the yellow compound, very complete determination of the firm plan war wind rm place monitoring head light. 2 reagents
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Ben Guangguang determined,
National Standard 1914-04-30 issued
1885.04-1 purchase certificate
4 analysis steps cumulative
industry number rack
r043756-84
weigh the table two upward test samples gradually determined, with average quality, 4.2 test samples
according to the soft clothing, take the reduction selection
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empty self-test
follow the previous sample to do three tests.
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Suffer, this standard
4.4.1 put the test mixture (4.2) into 50ml of water, add 2.2ml of 5ml of sodium sulphate, 2.31ml of acid, and wait for the reaction to stop, heat, sulfur, cool. Jiang surface blood and people, buy swimming salts, cool.
1.4,2 month 1l carbon aldehyde (2.3) will be washed with 6ml of condensate fractions into a bucket, and then washed with a little blood water + flow filtration to obtain a product greater than, K ~, when the liquid containing can be added to the GC; H full scale, the fraction rate of 1ml liquid, set the "ml micro-full", add 11ml with aldehyde (2.3)), the micro-fluid is about 26ml, add 4 ml with potassium chloride (2,53, standard, can add 15m benzene [2.1), long simmer for 2 min, simmer, and pass through ice. There are 10m (2.4), swaying m, high fraction. 44. The sample was transferred to a 25-well plate and washed with water. Then, 2.5 ml of concentrated acid solution (2.8) and 1.5 ml of fluorescein solution (2.6) were added to the concentrated solution. The sample was placed in a water-cooled chamber for 3 lmin.
4.4.4 The sample was separated by 1e (1g was used for the test. The absorbance at m was measured by spectrophotometer. The upper curve was 4.6 for the effective preparation.
4 .5.1 Grid connection.0.29..43.0.6f, 0.80a or, 0.05, 0.1.U.15,.2uml standard (2.12) respectively place two 2 yuan ml colorimetric pieces, 1 person 3ml carbon energy (2.3), dilute to 1ml, with a 4.4. item with t.5ml anti-blood ether dye (2.5) of the meter
45.2 transfer part of the full (4..)" 1m3emi, with sample, 1 minute, suction speed, with the whole, standard
6 minutes expansion result of the meter
according to the formula of the image after the minute also
formula, twist
GH 4375.6-B4
1As a result of the above analysis, the results are shown in Table 2. Table 2
0.otoc5 ~3.02t1www.bzxz.net
-1.4+? ~ 1.11121
1..42: ~1.1.05
, -,08r:
. -6, UJ8 1. 0212
Additional remarks:
This standard is issued by the State-owned Industrial Corporation. This standard is issued by China National Nonferrous Metals Corporation, which has completed the research and development of nonferrous metals since 2001. This standard must be certified by the National Nonferrous Metals Corporation.
0,14:98
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