Nanjing Weibury is committed to the basic testing of soil research and helps soil research institutions across the country to obtain accurate test data. We analyze various soil indicators based on soil application functions, protection objectives and main soil properties, referring to soil testing-related quality standards, and have accumulated a lot of industry experience to provide customers with one-stop soil testing and analysis solutions. And to help customers solve soil-related problems in time.

Testing items: soil nutrient composition testing, soil chemical properties analysis testing, soil physical properties analysis testing, soil microbial biomass testing, soil heavy metal testing, soil heavy metal subcellular distribution and soil heavy metal chemical form determination, soil enzyme activity testing

Detection range: soil, fertilizer, silt, mineral soil, sand

Detection equipment: element analyzer, ICP-MS, IC-aes, microplate reader, ultraviolet spectrophotometer

Testing instrument-Thermo ICP 6000

Introduction

American thermoelectric ICP inductively coupled plasma emission spectrometer ICAP6000 series

American thermoelectric ICP inductively coupled plasma emission spectrometer ICAP6000 ICP spectrometer is a better choice for routine analysis.

Reduced gas consumption,

Improved analysis performance for elements such as arsenic (As), antimony (Sb), selenium (Se) and tellurium (Te). Automatic wavelength correction and compensation correction ensure excellent long-term stability

The fourth generation charge injection (CID) detector RACID86

Regular analysis of fast, reliable and convenient performance, either using a single plasma torch vertical observation or bidirectional observation

feature of product:

Fully meet various analysis needs

ic6300 is a better choice for routine analysis, and it also has the flexibility of analysis, which can effectively deal with changes in various analysis requirements and conditions.

Better stability

The integrated structural design and precise temperature control optical system ensure excellent long-term stability.

Simple operation

The Jiahua injection module only needs to be plugged and unplugged without complicated connections, so that the CAP6300 can easily handle any type of sample

Reduced startup time

Multi-point distributed purge design and compact high-performance optical system greatly reduce gas consumption and instrument cold start time.

Detection equipment-element analyzer

Introduction

The vario MACRO cube, the first elemental analyzer with large sample volume on the market, can obtain information on the four elements of CHNS in one injection analysis. It has industry-leading performance and versatility, and sulfur (S) analysis can be achieved without an additional burner. It can even withstand a C/N ratio as high as 7000:1. This is due to Elementar's advanced and unique "purge and trap" adsorption column technology. The vario MACRO cube meets the analysis needs of all users for large-volume samples.

Performance:

Operation mode [CNS (TCD detector)]

Detection range [C: 0.002%—100% (or absolute maximum amount of 100mg) N: 0.004%—100% (or maximum absolute amount of 100mg) S: 0.004%—100% (or maximum absolute amount of 18mg)】

Detection limit [C, N<10ppm (about 300mg soil) S: 2ppm]

Accuracy【<0.5%rel】

Analysis time [automatically optimized according to element content and sample weight, CNS10-12min]

Autosampler【60 holes】

Main advantages: wide dynamic measurement range, low detection limit, high analysis accuracy

Soil enzyme activity

1 Introduction

Soil enzymes are biocatalysts that produce specific biochemical reactions in the soil. Soil enzyme activity refers to the ability of soil enzymes to catalyze the conversion of substances. Soil enzymes can catalyze the nutrient cycling process of the soil, which is an important indicator of soil dynamic quality.

The enzyme activity of the soil is closely related to the physical properties of the soil, water and heat conditions, the inorganic components and chemical composition of the soil, the characteristics of the absorptive complex, and agricultural technical measures. The ability of the soil to supply crop nutrients not only depends on the effective process of potential nutrients, but also depends on the effective degree of soil colloidal absorption of ions. The effects of these two aspects are related to the activity of soil enzymes, so soil enzyme activity and soil fertility The relationship is very close.

2. Testing index

form

3. Technical route

Soil sample air-drying-marking line establishment-enzymatic reaction-absorbance detection-enzyme activity calculation

4. Technical characteristics

1: High-throughput, 96-well plate, can detect 48 samples at a time

2: Highly sensitive, accurate quantitative soil enzyme activity content

3: The test results have good repeatability;

5. Case analysis

1. Soil elements

1 Introduction

The testing items we cover include soil nutrient composition testing, soil chemical properties analysis testing, soil physical properties analysis testing, soil microbial biomass testing, soil heavy metal testing, soil heavy metal subcellular distribution and soil heavy metal chemical form content determination.

2. Testing index

form

3. Technical route

Digestion-Catching Acid-Constant Volume-On-board Inspection

4. Technical characteristics

1: High throughput;

2: High sensitivity;

3: The test results have good repeatability;

5. Case analysis