CN106248472A - A kind of COD clears up the method that instrument measures the soil organism - Google Patents
A kind of COD clears up the method that instrument measures the soil organism Download PDFInfo
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- CN106248472A CN106248472A CN201610894178.4A CN201610894178A CN106248472A CN 106248472 A CN106248472 A CN 106248472A CN 201610894178 A CN201610894178 A CN 201610894178A CN 106248472 A CN106248472 A CN 106248472A
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- instrument
- cod
- soil
- clear
- soil organism
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/4044—Concentrating samples by chemical techniques; Digestion; Chemical decomposition
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of COD to clear up the method that instrument measures the soil organism, combines self-control digestion tube with the instrument of clearing up measuring water sample COD, for clearing up the soil test soil organism in batches, using standard soil as sample, explores digestion time.This digestion procedure has the advantages such as batch processing amount easy to clean is big；The digestion tube of preparation band air return pipe.The oil bath in NY/T 1121.6 2006 standard just can be replaced to clear up pot.The digestion tube of the present invention is easy to clean, more friendly to human and environment without oil bath, clears up instrument control temp effect good compared with oil bath pan, and batch processing amount is big.This invention is promoted in the soil organism measures, and can save a large amount of human and material resources and financial resources, protection environment and personal safety.
Description
Technical field
The invention belongs to solid waste and Soil Testing, relate to a kind of COD and clear up the instrument mensuration soil organism
Method.
Background technology
The mensuration of the soil organism is divided into two steps, the first step be the soil organism under the conditions of sulphuric acid by excess potassium dichromate
Oxidation is cleared up, and second step is with ferrous standard solution titration residual gravity Neutral potassium chromate.The mode of heating that first step oxidation is cleared up has (1)
GB9834-88 digestion container is conical flask, condensing tube air return or tap water backflow, uses electric hot plate heating or electricity sand bath to add
Heat, the method temperature control is more difficult, batch processing negligible amounts；(2) LY/T 1237-1999 and NY/T1121.6-2006 test tube are joined little
Funnel heats as digestion container, oil bath, and temperature controls at 170 DEG C～180 DEG C, and temperature control is good, and batch processing amount is relatively big, but heating is situated between
Matter hard paraffin, silicone oil or glycerol etc., add thermal medium paraffin and silicone oil be water insoluble, be attached to the outer wall of test tube, and cleaning is compared
Trouble；Glycerol good water solubility, easy cleaning, but glycerol also can react with potassium dichromate, clean and improper may cause experimental error.This
Add thermal medium to be not suitable for heating for a long time, owing to volatilize, aoxidize or decomposition etc. causes pollution and operator are caused injury.
Prior art COD related to the present invention clears up instrument, and such as 5B-1 type COD Quick testing instrument, (Lanzhou connects Hua Huan
Protect Science and Technology Ltd.)；COD clears up instrument 25 hole (Keelung, Changsha instrument and meter company limited)；HCR-100 rapid-digestion device is (safe
Ke Xin Instrument Ltd. of state city)；Instrument (Beijing Ke Nuo tech Analytical Instrument Co., Ltd) is cleared up in KN-HEA12 type intelligence 25 holes
Deng.Existing COD clear up instrument include heating part and contain threaded lid that water sample carries out reacting clear up test tube.But it is threaded
The test tube of clearing up of lid is not suitable for measuring the soil organism, and because soil organic matter content is high, in reaction tube, air pressure is big, easily screw thread
Lid punching pine and leakage.
The shortcoming of the existing mensuration soil organism.Little funnel joined by LY/T 1237-1999 and NY/T 1121.6-2006 test tube
As digestion tube, oil bath is heated, and temperature controls at 170 DEG C～180 DEG C, and temperature control is good, and batch processing amount is bigger.Oil bath solid stone
It is water insoluble that wax, silicone oil or glycerol etc. make to add thermal medium, paraffin and silicone oil, is attached to the outer wall of test tube, cleans cumbersome；Sweet
Oil good water solubility, easy cleaning, but glycerol also can react with potassium dichromate, clean and improper may cause experimental error.These heating
Medium is not suitable for heating for a long time, owing to volatilize, aoxidize or decomposition etc. causes pollution and operator are caused injury.
Summary of the invention
Clearing up the problem of existence in view of the existing soil organism measures heating, the present invention provides one COD to clear up instrument and surveys
The method determining the soil organism, the method clean environment firendly, batch clear up the soil test soil organism.
To achieve these goals, the technical solution of the present invention is:
A kind of COD clears up the method that instrument measures the soil organism, using standard soil sample as sample, by agricultural industry criteria
NY/T 1121.6-2006 reagent dosage samples, and will clear up instrument and be preheating to 185 DEG C, is then placed in containing the self-control of Specimen eliminating liquid
After digestion tube, temperature is set in 175 DEG C, starts timing with air return pipe first condensed fluid that drip, clear up 10min～
15min, measures the soil organism.
Further, COD clears up instrument and selects 15 holes, 16 holes, 20 holes, 25 holes or 36 holes to clear up instrument.
Further, described digestion tube includes clearing up test tube and air return pipe.
The present invention measures the instrument of clearing up of water sample COD and combines self-control digestion tube, has for clearing up soil test soil in batches
Machine matter, using standard soil as sample, explores digestion time.This digestion procedure has the advantages such as batch processing amount easy to clean is big
The present invention also has the advantages that
The present invention utilizes existing COD to clear up instrument, coordinates self-control digestion tube, just can replace NY/T 1121.6-2006 standard
In oil bath clear up pot.The digestion tube of the present invention is easy to clean, more friendly to human and environment without oil bath, clears up instrument control temperature effect
Fruit is good compared with oil bath pan, and batch processing amount is big.This invention is promoted in the soil organism measures, and can save a large amount of human and material resources and wealth
Power, protection environment and personal safety.
Accompanying drawing explanation
Fig. 1. for making the structural representation of digestion tube by oneself
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below technical scheme in the present invention carry out clearly
Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of the present invention rather than whole embodiments.Based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under not making creative work premise
Embodiment, broadly falls into the scope of protection of the invention.
As it is shown in figure 1, the present invention clears up the diameter clearing up hole and the degree of depth of instrument according to COD, test tube and air are cleared up in self-control
Return duct is as digestion tube.Digestion tube includes clearing up test tube and air return pipe, using standard soil sample as sample, by agricultural industry
Standard NY/T 1121.6-2006 reagent dosage samples, and will clear up instrument and be preheating to 185 DEG C, is then placed in containing Specimen eliminating liquid
After self-control digestion tube, temperature is set in 175 DEG C, starts timing with air return pipe first condensed fluid that drip, clear up 10min～
15min, measures the soil organism.
Measurement result is stable and consistent with the standard value of standard soil sample.
Clear up instrument and may select 15 holes (5 × 3), 16 holes (4 × 4), 20 holes (4 × 5), 25 holes (5 × 5), 36 holes (6 × 6) etc.
Clear up the back titration of rear residual gravity Neutral potassium chromate as NY/T1121.6-2006.This invention Digestion of Some Soil Samples is simple, cleaning,
Environmental protection, batch processing amount are big.The present invention clears up the analysis result that the analysis result of soil sample and NY/T 1121.6-2006 clear up not to be had
Significantly difference, but the smart sensitivity that precision is compared with NY/T 1121.6-2006 is more preferable.
Last it is noted that above example is only in order to illustrate technical scheme, it is not intended to limit；Although
With reference to previous embodiment, the present invention is described in detail, it will be understood by those within the art that: it still may be used
So that the technical scheme described in foregoing embodiments to be modified, or wherein portion of techniques feature is carried out equivalent；
And these amendment or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and
Scope.
Claims (3)
1. the method clearing up the instrument mensuration soil organism with COD, it is characterised in that using standard soil sample as sample, by agriculture
Industry industry standard NY/T 1121.6-2006 reagent dosage samples, and will clear up instrument and be preheating to 185 DEG C, is then placed in containing sample and disappears
After solving the self-control digestion tube of liquid, temperature is set in 175 DEG C, starts timing with air return pipe first condensed fluid that drip, clears up
10min～15min, measures the soil organism.
COD the most according to claim 1 clears up the method that instrument measures the soil organism, it is characterised in that COD clears up instrument
15 holes, 16 holes, 20 holes, 25 holes or 36 holes are selected to clear up instrument.
COD the most according to claim 1 clear up instrument measure the soil organism method, it is characterised in that described in clear up
Pipe includes clearing up test tube (1) and air return pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610894178.4A CN106248472A (en) | 2016-10-13 | 2016-10-13 | A kind of COD clears up the method that instrument measures the soil organism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610894178.4A CN106248472A (en) | 2016-10-13 | 2016-10-13 | A kind of COD clears up the method that instrument measures the soil organism |
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| Publication Number | Publication Date |
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| CN106248472A true CN106248472A (en) | 2016-12-21 |
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| CN201610894178.4A Pending CN106248472A (en) | 2016-10-13 | 2016-10-13 | A kind of COD clears up the method that instrument measures the soil organism |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288725A (en) * | 2011-07-19 | 2011-12-21 | 中国科学院东北地理与农业生态研究所 | Method for measuring organic matters in soil |
| CN203069503U (en) * | 2012-11-16 | 2013-07-17 | 南开大学 | Detector for fast determining content of organic matters in organic fertilizer |
| CN103869043A (en) * | 2012-12-11 | 2014-06-18 | 深圳市龙澄高科技环保有限公司 | Method for determining COD of semisolid organic matter |
| CN104597143A (en) * | 2013-10-31 | 2015-05-06 | 大连大公环境检测有限公司 | A method of detecting volatile organic compounds in soil |
| CN205643150U (en) * | 2016-04-28 | 2016-10-12 | 乐山师范学院 | COD short -term test appearance |
-
2016
- 2016-10-13 CN CN201610894178.4A patent/CN106248472A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288725A (en) * | 2011-07-19 | 2011-12-21 | 中国科学院东北地理与农业生态研究所 | Method for measuring organic matters in soil |
| CN203069503U (en) * | 2012-11-16 | 2013-07-17 | 南开大学 | Detector for fast determining content of organic matters in organic fertilizer |
| CN103869043A (en) * | 2012-12-11 | 2014-06-18 | 深圳市龙澄高科技环保有限公司 | Method for determining COD of semisolid organic matter |
| CN104597143A (en) * | 2013-10-31 | 2015-05-06 | 大连大公环境检测有限公司 | A method of detecting volatile organic compounds in soil |
| CN205643150U (en) * | 2016-04-28 | 2016-10-12 | 乐山师范学院 | COD short -term test appearance |
Non-Patent Citations (5)
| Title |
|---|
| 中华人民共和国农业部: "《GB 9834-88 土壤有机质测定法》", 1 March 1989 * |
| 中华人民共和国农业部: "《NY/T 1121.6-2006 土壤检测 第6部分：土壤有机质的测定》", 10 July 2006 * |
| 国家林业局: "《LY/T 1237-1999 森林土壤有机质的测定及碳氮比的计算》", 1 November 1999 * |
| 杨冬雪 金芳澄: "直接加热消解法测定土壤底质中的有机质", 《中国环境监测》 * |
| 梁重山 等: "土壤/沉积物样品中有机碳含量的快速测定", 《土壤学报》 * |
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Application publication date: 20161221 |
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