|
US$199.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 35876-2018: Inspection of grain and oils -- Determination of sodium, magnesium, kalium, calcium, chromium, manganese, iron, copper, zinc, arsenic, selenium, cadmium and plumbum in cereals and derived products -- Inductively coupled plasma-mass spectrometric method
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 35876-2018 | English | 199 |
Add to Cart
|
3 days [Need to translate]
|
Inspection of grain and oils -- Determination of sodium, magnesium, kalium, calcium, chromium, manganese, iron, copper, zinc, arsenic, selenium, cadmium and plumbum in cereals and derived products -- Inductively coupled plasma-mass spectrometric method
| Valid |
GB/T 35876-2018
|
PDF similar to GB/T 35876-2018
Basic data | Standard ID | GB/T 35876-2018 (GB/T35876-2018) | | Description (Translated English) | Inspection of grain and oils -- Determination of sodium, magnesium, kalium, calcium, chromium, manganese, iron, copper, zinc, arsenic, selenium, cadmium and plumbum in cereals and derived products -- Inductively coupled plasma-mass spectrometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | X11 | | Classification of International Standard | 67.060 | | Word Count Estimation | 10,180 | | Date of Issue | 2018-02-06 | | Date of Implementation | 2018-09-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 35876-2018: Inspection of grain and oils -- Determination of sodium, magnesium, kalium, calcium, chromium, manganese, iron, copper, zinc, arsenic, selenium, cadmium and plumbum in cereals and derived products -- Inductively coupled plasma-mass spectrometric method
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Inspection of grain and oils - Determination of sodium, magnesium, kalium, calcium, chromium, manganese, iron, copper, zinc, arsenic, selenium, cadmium and plumbum in cereals and derived products - Inductively coupled plasma-mass spectrometric method
ICS 67.060
X11
National Standards of People's Republic of China
Grain and oil testing of cereals and their products sodium, magnesium, potassium, calcium,
Chromium, manganese, iron, copper, zinc, arsenic, selenium, cadmium and lead
Inductively coupled plasma mass spectrometry
Inspectionofgrainandoils-Determinationofsodium, magnesium, kalium,
calcium, chromium, manganese, iron, copper, zinc, arsenic, selenium, cadmiumand
2018-02-06 released
2018-09-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard proposed by the State Food Administration.
This standard by the National Cereals and Oils Standardization Technical Committee (SAC/TC270) centralized.
This standard was drafted. Ministry of Agriculture cereals and products Quality Supervision and Testing Center (Harbin), Heilongjiang Academy of Agricultural Sciences agricultural products
Quality and Safety Institute.
The main drafters of this standard. Chen Guoyou, Du Yingqiu, Ma Yonghua, a single macro, Su Ping, Cheng Aihua, Wang Lekai.
Grain and oil testing of cereals and their products sodium, magnesium, potassium, calcium,
Chromium, manganese, iron, copper, zinc, arsenic, selenium, cadmium and lead
Inductively coupled plasma mass spectrometry
1 Scope
This standard specifies the inductively coupled plasma mass spectrometry determination of cereals and their products sodium (Na), magnesium (Mg), potassium (K), calcium (Ca), chromium
Principles of Reagents and Materials for Cr, Mn, Fe, Cu, Zn, As, Se, Cd and Pb ,instrument
Equipment and equipment, analysis steps, results calculation and precision requirements.
This standard applies to the determination of Na, Mg, K, Ca, Cr, Mn, Fe, Cu, Zn, As, Se, Cd and Pb in cereals and their products.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 6682 analytical laboratory water specifications and test methods
3 principle
The sample digestion solution is atomized and introduced into the plasma (ICP) by a carrier gas, passed through a high-temperature ion source by evaporation, dissociation, atomization, ionization, etc.
Cheng, into positively charged ions, the ion reaches the mass spectrometer (MS) through the lens system, the mass spectrometer separates according to the mass-to-charge ratio, the mass spectrometry signal
The intensity (CPS) is proportional to the number of ions entering the mass spectrometer, ie the ion count of the mass spectrum is positive with the concentration of the analyte in the sample solution
Ratio, by measuring the number of ions in the mass spectrometry to determine the content of the sample elements compared with the standard series --- "internal standard method of quantification" to calculate the sample
In the test element content.
4 Reagents and materials
Unless otherwise specified, the reagents used are excellent pure, the experimental water should be consistent with GB/T 6682 provisions of a water.
4.1 Nitric acid. φ (HNO3) = 65%, if necessary, re-distillation or use of high-purity reagents.
4.2 Hydrogen peroxide. φ (H2O2) = 30%.
4.3 Nitric acid solution (2 98). Measure 20 mL of nitric acid (4.1), slowly add 980 mL of water and mix well.
4.4 Mass spectrometry tuning solution. Buy a certified national standard solution directly; mixed mass spectrum tuning solution of lithium (Li), yttrium (Y), thallium (Tl), etc.
The concentration is 10 μg/mL. Before use with nitric acid solution (4.3) diluted to a concentration of 0.010μg/mL.
4.5 Internal standard solution. directly purchase the certified national standard solution; scandium (Sc), germanium (Ge), indium (In), bismuth (Bi)
Degree is 10 μg/mL. Before use with nitric acid solution (4.3) diluted to a concentration of 1.0μg/mL.
4.6 inorganic elements mixed standard stock solution. direct purchase of certified national standard solution; the concentration of sodium, magnesium, chromium, manganese, iron, copper, zinc, arsenic,
Cadmium 50μg/mL, potassium, calcium, selenium, lead 100μg/mL.
4.7 Inorganic elements mixed standard solution. According to the need to learn appropriate amount of inorganic elements mixed standard stock solution (4.6), with nitric acid solution (4.3)
The standard solution of sodium, magnesium, chromium, manganese, iron, copper, zinc, arsenic and cadmium was diluted to 5.0 μg/mL by level. Potassium, calcium, selenium and lead
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 35876-2018_English be delivered?Answer: Upon your order, we will start to translate GB/T 35876-2018_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time. Question 2: Can I share the purchased PDF of GB/T 35876-2018_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 35876-2018_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet. Question 3: Does the price include tax/VAT?Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countriesQuestion 4: Do you accept my currency other than USD?Answer: Yes. If you need your currency to be printed on the invoice, please write an email to [email protected]. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.
|